| Primary Subject | Secondary Subject | Library Numbers | |||||||||||
| UAE | - | 2717+ | 3628 | ||||||||||
| UGANDA | - | 2718+ | 2961 | 3065+ | 5071 | ||||||||
| UKRAINE | Overprints | 1257 | |||||||||||
| URUGUAY | - | 1064+ | 1602 | 1610 | 1666 | 1979 | 2475 | 3709 | 3722 | 4036 | 4560 | 4684 | 4760 |
| URUGUAY | - | 5087 | 5693 | ||||||||||
| USA | - | 1798 | 2707+ | 3002+ | 4001 | 4003 | 4228 | 4300 | 4617 | ||||
| USA | ./../… | 2509 | |||||||||||
| USA | 13c Fillmore issue | 5012 | 5018 | 5026 | |||||||||
| USA | 1893 Columbian Exposition | 0175 | 0276 | 0431 | 0452 | 0607 | 3695 | 3795 | 5037 | ||||
| USA | 1894 issue | 0154 | 0431 | ||||||||||
| USA | 1901 Pan American Exposition | 0431 | |||||||||||
| USA | 1902 "Series 1902" | 0154 | 0263 | 0314 | 0328 | 0349 | 1794 | ||||||
| USA | 1902 Washington issue | 0466 | |||||||||||
| USA | 1902-03 issue | 0290 | 0365 | ||||||||||
| USA | 1907 Jamestown Exposition issue | 5229 | |||||||||||
| USA | 1908 Dated covers | 0061 | 0174 | 0457 | 0979 | 1948 | 3443 | 3602 | 3630 | 3664 | 3667 | 3697 | 3762 |
| USA | 1908 Dated covers | 3798 | 3860 | 4624 | 4628 | 5216 | 5343 | 5351 | 5375 | 5399 | 5412 | 5572 | 5701 |
| USA | 1908 Franklin/Washington definitives | 0492 | 0744 | 0770 | 0878 | 3428 | |||||||
| USA | 1909 Abraham Lincoln issue | 5691 | |||||||||||
| USA | 1909 Alaska-Yukon issue | 3723 | |||||||||||
| USA | 1911 Registration stamp | 0499 | 0606 | ||||||||||
| USA | 1918-1920 Offset Printed Issue | 0081 | 0126 | 0145 | 0222 | 0244 | 0572 | ||||||
| USA | 1922 definitive issue | 0897 | |||||||||||
| USA | 1923 Black Harding issue | 2059 | 3242 | 3373 | 3380 | 3814 | 4598 | 4900 | 5704 | ||||
| USA | 1932 Olympic Games issue | 0350 | 0676 | ||||||||||
| USA | 1932 Washington portrait by Stuart | 0467 | 1010 | 1203 | 1459 | 5055 | |||||||
| USA | 1940 National Defense issue | 4908 | 5677 | 5682 | 5703 | 5712 | |||||||
| USA | 1940 Washington Irving issue | 3816 | 3853 | ||||||||||
| USA | 1961 Statue of Liberty issue | 3844 | 3851 | 3865 | |||||||||
| USA | 2c Washington Perf 11 | 1812 | 2469 | 3863 | |||||||||
| USA | 3-armed cross | 0364 | |||||||||||
| USA | 85% die | 0550 | |||||||||||
| USA | AA/Co | 0287 | 0471 | ||||||||||
| USA | ACB/LD | 0276 | 0452 | ||||||||||
| USA | Advertising Envelopes & Cards | 0278 | 0482 | 0972 | 1794 | 3602 | 3751 | 3760 | 4909 | 4914 | 5151 | 5212 | 5217 |
| USA | Advertising Envelopes & Cards | 5343 | 5345 | 5358 | 5381 | 5393 | 5399 | 5413 | 5422 | ||||
| USA | Advertising rings | 0092 | 1204 | 2926 | |||||||||
| USA | Affixing Machines | 2670 | |||||||||||
| USA | Air mail stamps | 0360 | 3374 | 3637 | 4597 | ||||||||
| USA | Alphabet issues | 5045 | |||||||||||
| USA | AMERICAN APPRAISAL | 0287 | 0471 | 3637 | |||||||||
| USA | American Automobile Association | 0986 | |||||||||||
| USA | American Type Founders Co. | 2508 | |||||||||||
| USA | APS | 0188 | 0198 | 0215 | 0837 | 2534 | 3662 | ||||||
| USA | ARI/PEX | 0799 | 2665 | 3769 | |||||||||
| USA | ARM | 0501 | 0800 | ||||||||||
| USA | Armstrong Cator & Co. | 2509 | |||||||||||
| USA | ATC | 2513 | |||||||||||
| USA | Atlanta Georgian | 2508 | |||||||||||
| USA | Aurora Automatic Machinery Co. | 2509 | 2512 | ||||||||||
| USA | Australian stamps with U.S. perfins | 0245 | |||||||||||
| USA | Automobile Companies | 0133 | 0237 | 0894 | 1512 | 1800 | 2509 | 2514 | 2582 | 3001+ | 3230 | 3412 | 3678 |
| USA | Automobile Companies | 4596 | 4610 | 5042 | 5148 | 5233 | 5349 | ||||||
| USA | B (in star) | 0454 | |||||||||||
| USA | B. F. Goodrich | 2508 | |||||||||||
| USA | Baltimore Bargain House | 2511 | 3630 | ||||||||||
| USA | Banks | 0099 | 0144 | 0346 | 0454 | 0657 | 0735 | 0910+ | 0947 | 0955 | 0959 | 1818 | 3226 |
| USA | Banks | 3375 | 3381 | 3382 | 3385 | 3411 | 3418 | 3539 | 3541 | 3544 | 3605 | 3678 | 3768 |
| USA | Banks | 4106 | 4214 | 4312 | 4457 | 4472 | 4592 | 4618 | 4913 | 5111 | 5126 | 5133 | 5147 |
| USA | Banks | 5159 | 5167 | 5216 | 5232 | 5402 | 5407 | 5420 | 5424 | 5704 | |||
| USA | Baseball Commemoratives | 5210 | |||||||||||
| USA | BBH | 2511 | |||||||||||
| USA | Berry Brothers Ltd. | 2509 | |||||||||||
| USA | Bisect cover | 0390 | |||||||||||
| USA | Branch identity codes | 0066+ | 0199 | 0245 | 0454 | 0469 | 0625 | 0966 | 2825 | ||||
| USA | C (in star) | 0274 | 0289 | ||||||||||
| USA | Cain ratings | 0131+ | 0589 | 3706 | 3742 | 5410 | |||||||
| USA | CAN | 0656 | |||||||||||
| USA | Canadian perfins on U.S. stamps | 0154 | 0487 | 1036 | 5391 | ||||||||
| USA | Carpet dies | 0959 | |||||||||||
| USA | Catalogue | 0441 | 0617+ | 0858+ | 0859 | 2021+ | 2022+ | ||||||
| USA | Catalogue - Illustrated | 0066+ | 0429+ | 0430 | 0586+ | 1716 | 1942 | 2707+ | |||||
| USA | Catalogue updates | 3732 | 5379 | 5383 | 5392 | 5395 | 5401 | ||||||
| USA | Catalogues & Cataloguing | 0942 | 1228 | 1792 | 3388 | 3442 | 3581 | 3590 | 3755 | 3859 | 3883 | 5014 | 5023 |
| USA | Catalogues & Cataloguing | 5065 | 5108 | 5404 | 5417 | 5419 | 5567 | ||||||
| USA | CDS | 0842 | |||||||||||
| USA | Censored mail | 4011 | 4489 | ||||||||||
| USA | Census of perfins holdings | 0143 | |||||||||||
| USA | Centaur Co. | 2509 | |||||||||||
| USA | Chemical Companies | 1517 | 4218 | 5393 | |||||||||
| USA | Cheque Perforations | 4298 | |||||||||||
| USA | Chicago perfins | 0625 | 0943 | 0961 | 0967 | 1055 | 1227 | 2766 | 3107 | 3134 | 3373 | 3375 | 3386 |
| USA | Chicago perfins | 3387 | 3404 | 3413 | 3414 | 3433 | 3434 | 3436 | 3439 | 3469 | 3480 | 3483 | 3541 |
| USA | Chicago perfins | 3550 | 3551 | 3594 | 3602 | 3608 | 3610 | 3654 | 3667 | 3768 | 3830 | 3832 | 3834 |
| USA | Chicago perfins | 3847 | 4226 | 4227 | 4457 | 4581 | 4608 | 4624 | 4628 | 5075 | 5092 | 5111 | 5140 |
| USA | Chicago perfins | 5147 | 5148 | 5216 | 5229 | 5234 | 5238 | 5344 | 5351 | 5375 | 5393 | ||
| USA | Cinderellas | 0038 | 0475 | 2324 | 5183 | ||||||||
| USA | Coil Stamps | 3635 | 5036 | ||||||||||
| USA | Commemorative perfins | 5032 | |||||||||||
| USA | Control Holes | 3387 | 3419 | 3538 | 3642 | 4578 | |||||||
| USA | Cook, Thomas | 0233 | 0400 | 2293 | 4330 | ||||||||
| USA | Crash Covers | 0002 | |||||||||||
| USA | Credit Note cancelled by perfin | 0015 | |||||||||||
| USA | Cudahy Packing Co. | 5225 | |||||||||||
| USA | Daniel Low Co. | 0526 | |||||||||||
| USA | Designs | 0279 | 0308 | 0310 | 0311 | 0324 | 0362 | 0445 | 0962 | 2861 | 3091 | 3100 | 3790 |
| USA | Designs | 3815 | 3817 | 3828 | 3829 | 3840 | 3841 | 3869 | 5141 | 5213 | 5224 | 5234 | 5242 |
| USA | DIC | 1057 | |||||||||||
| USA | Different perfins on joined pair | 3875 | |||||||||||
| USA | Different perfins on same stamp | 3454 | 3637 | 5696 | |||||||||
| USA | Document perfins | 5180 | 5181 | 5188 | |||||||||
| USA | Dollar Stamps | 2897 | |||||||||||
| USA | Earliest use | 0061 | 0835 | 2521 | 2595 | 3697 | 3701 | 3787 | 3806 | 3860 | 5024 | 5025 | 5079 |
| USA | Earliest use | 5416 | 5572 | ||||||||||
| USA | EL/PEX | 0004 | |||||||||||
| USA | Embossing | 0431 | |||||||||||
| USA | Errors bearing perfins | 0327 | 0436 | 0740 | 5422 | 5689 | 5695 | ||||||
| USA | First Day of Issue Perfins | 5376 | 5688 | ||||||||||
| USA | First Day of Use (of perfin) covers | 5573 | 5680 | ||||||||||
| USA | Forgeries | 3708 | |||||||||||
| USA | Full names | 0187 | 0494 | 0956 | 3593 | 3599 | 3601 | 4105 | 4303 | 5098 | 5229 | 5359 | |
| USA | Funk & Wagnall Co. | 2509 | |||||||||||
| USA | GA | 2668 | |||||||||||
| USA | General Mills | 0876 | |||||||||||
| USA | Girl Scout Protest Covers | 2909 | |||||||||||
| USA | Government agencies | 0332 | 1011 | ||||||||||
| USA | Graf Zeppelin Cover | 0079 | |||||||||||
| USA | H. B. Claffin Co. | 2509 | |||||||||||
| USA | HA/Co | 2510 | |||||||||||
| USA | Half-cent stamps | 3466 | |||||||||||
| USA | Henderson-Ames Co. | 2510 | |||||||||||
| USA | Hercules Buggy Co. | 2509 | 3646 | ||||||||||
| USA | HL | 3712 | |||||||||||
| USA | Holeproof Hosiery Co. | 2515 | 3716 | ||||||||||
| USA | Hotels | 0901 | 2596 | ||||||||||
| USA | HS/BC | 0840 | 0875 | ||||||||||
| USA | Ice, Gas & Coke Companies | 1515 | 3647 | ||||||||||
| USA | Identification of Lettering | 0838 | 4104 | 4302 | |||||||||
| USA | Identification of users | 0693 | 4213 | 4471 | 4616 | 4619 | 4620 | ||||||
| USA | Imperforate stamps perfinned | 5219 | 5700 | 5709 | |||||||||
| USA | Insurance Companies | 0610 | 0769 | 0881 | 0910+ | 0948 | 3389 | 3413 | 3423 | 3475 | 3547 | 3578 | 3582 |
| USA | Insurance Companies | 3584 | 3586 | 3615 | 3621 | 3623 | 3665 | 3819 | 3881 | 4217 | 4457 | 5114 | 5124 |
| USA | Insurance Companies | 5142 | |||||||||||
| USA | International Harvester Co. | 0077 | 0237 | 0739 | 2508 | 3538 | 3847 | 5216 | |||||
| USA | Introductory articles | 0882 | 1222 | 2595 | 2703 | 2890 | 5153 | ||||||
| USA | KIS/NER | 0311 | 0475 | 2527 | |||||||||
| USA | Lamar & Co. | 2511 | |||||||||||
| USA | Late use | 4629 | |||||||||||
| USA | LP | 0184 | 0279 | ||||||||||
| USA | M (in circle) | 0315 | 0336 | 0436 | |||||||||
| USA | Maryland revenues | 5105 | |||||||||||
| USA | Misformed letters | 4593 | |||||||||||
| USA | Misuse of perfins | 0745 | 1947 | 3431 | 3446 | 3451 | |||||||
| USA | MLI | 1206 | |||||||||||
| USA | Modern Perfins | 3403 | 3408 | 3427 | 3445 | 3447 | 3448 | 3456 | 3606 | 3739 | 3780 | 3803 | 4562 |
| USA | Modern Perfins | 5085 | 5086 | ||||||||||
| USA | Modified Perfins | 0468 | 1819 | 3492 | 3536 | 3542 | 3546 | 3702 | 4295 | 4487 | 5030 | 5185 | 5711 |
| USA | Multihead Dies | 0649 | 1022 | 3591 | 3615 | 3632 | 4559 | 4621 | 5121 | 5132 | 5711 | ||
| USA | Music & Musical Instrument Companies | 1221 | 1405 | 3424 | 3437 | 3588 | 3741 | 3808 | 4110 | 4304 | 4464 | 4509 | 5058 |
| USA | Music & Musical Instrument Companies | 5093 | 5222 | 5234 | |||||||||
| USA | NED | 0419 | |||||||||||
| USA | New York Stock transfer stamps | 0149 | 2860 | 3043 | 3392 | 3393 | 3394 | 3486 | 3555 | 3614 | 3626 | 3629 | 3668 |
| USA | New York Stock transfer stamps | 3674 | 3744 | 3776 | 4226 | 5155 | 5193 | ||||||
| USA | Non-postal perfins | 3826 | |||||||||||
| USA | Numeral perfins | 5111 | 5147 | 5167 | 5426 | 5569 | |||||||
| USA | Odd Strikes | 5083 | |||||||||||
| USA | Officials | 0003 | 0037 | 0900 | 0913 | 1044 | |||||||
| USA | Oil companies | 0133 | 0237 | 1041 | 3609 | 3672 | 3682 | 3862 | 4216 | 5059 | 5077 | 5140 | 5146 |
| USA | Oil companies | 5178 | |||||||||||
| USA | Overprints | 1690 | 2927 | 2929 | 2932 | ||||||||
| USA | Overprints - Kans.; Nebr. | 0434 | 3552 | 3752 | 3801 | 5013 | 5555 | 5710 | |||||
| USA | Overseas branches of US firms | 0077 | 0133 | 0144 | 0161 | 0236 | 0237 | 0298 | 0551 | ||||
| USA | Paint, Varnish and Allied Companies | 1452 | 3004+ | 5211 | 5344 | 5357 | 5393 | ||||||
| USA | Pair with/without perfin | 0106 | |||||||||||
| USA | Paquebot use | 5064 | |||||||||||
| USA | Parcel Post Stamps with Perfins | 0103 | 0154 | 3420 | 3825 | 3836 | 3839 | 3848 | 3856 | 3861 | 5397 | ||
| USA | Pennsylvania precancelled perfins | 0796 | |||||||||||
| USA | Perforated control | 0366 | |||||||||||
| USA | Personal Perfins | 0123 | 0187 | 0389 | 0494 | 0581 | 0588 | 0595 | 0648 | 0771 | 0836 | 0877 | 3232 |
| USA | Personal Perfins | 3244 | 3408 | 3535 | 3607 | 3693 | 3700 | 3713 | 3725 | 3765 | 3766 | 3790 | 3817 |
| USA | Personal Perfins | 3833 | 3841 | 3869 | 3878 | 4715 | 5002 | 5030 | 5043 | 5054 | 5060 | 5072 | 5074 |
| USA | Personal Perfins | 5098 | 5099 | 5100 | 5162 | 5185 | 5186 | 5189 | 5356 | 5410 | 5426 | 5569 | 5683 |
| USA | Personal Perfins | 5687 | 5688 | ||||||||||
| USA | PF | 0168 | 0199 | 0279 | 0282 | 3440 | 3686 | ||||||
| USA | Pharmaceutical Companies | 0444 | 2509 | ||||||||||
| USA | Postage due paid with perfin | 3485 | 5094 | ||||||||||
| USA | Postage dues perfinned | 5390 | |||||||||||
| USA | Postal stationery | 0282 | 3455 | 3769 | 5409 | ||||||||
| USA | PPI/ECo | 0020 | 0443 | 0841 | 1210 | 3087 | 3473 | 3590 | 3683 | 5197 | 5345 | 5358 | |
| USA | Precancels | 0419 | 0476 | 0954 | 1207 | 1216 | 1218 | 1362 | 1619 | 1627 | 2700 | 2962 | 2994 |
| USA | Precancels | 3034 | 3037 | 3242 | 3379 | 3387 | 3441 | 3454 | 3482 | 3660 | 3789 | 3811 | 4594 |
| USA | Precancels | 4611 | 5084 | 5146 | 5150 | 5227 | 5239 | 5347 | 5678 | ||||
| USA | Proving covers | 0013 | 0107 | 0223 | 0530 | 0543 | 0875 | 0949 | 0953 | 0980 | 0981 | 0983 | 0984 |
| USA | Proving covers | 1821 | 1822 | 2582 | 2865 | 2954 | 3025 | 3093 | 3229 | 3230 | 3379 | 3390 | 3391 |
| USA | Proving covers | 3396 | 3398 | 3405 | 3406 | 3410 | 3415 | 3421 | 3429 | 3438 | 3458 | 3462 | 3463 |
| USA | Proving covers | 3468 | 3472 | 3476 | 3477 | 3478 | 3490 | 3547 | 3553 | 3585 | 3587 | 3591 | 3592 |
| USA | Proving covers | 3594 | 3600 | 3603 | 3604 | 3618 | 3620 | 3627 | 3634 | 3636 | 3638 | 3648 | 3650 |
| USA | Proving covers | 3651 | 3653 | 3655 | 3659 | 3661 | 3666 | 3669 | 3670 | 3676 | 3680 | 3696 | 3707 |
| USA | Proving covers | 3718 | 3730 | 3736 | 3748 | 3757 | 3850 | 3885 | 3886 | 4010 | 4106 | 4107 | 4108 |
| USA | Proving covers | 4109 | 4216 | 4217 | 4218 | 4219 | 4226 | 4288 | 4313 | 4314 | 4417 | 4458 | 4463 |
| USA | Proving covers | 4474 | 4483 | 4484 | 4485 | 4488 | 4496 | 4497 | 4508 | 4561 | 4581 | 4623 | 4625 |
| USA | Proving covers | 4626 | 4632 | 4901 | 5011 | 5022 | 5095 | 5104 | 5115 | 5130 | 5218 | 5346 | 5355 |
| USA | Proving covers | 5398 | 5414 | 5676 | 5681 | 5685 | 5697 | ||||||
| USA | Publishing Companies | 0604 | 1214 | 2509 | 3003+ | 3387 | 3459 | 3611 | 5351 | 5412 | |||
| USA | Quaker Oats Co. | 2509 | |||||||||||
| USA | Radio, Movie and Theatre Companies | 1513 | |||||||||||
| USA | Radiography | 1433 | |||||||||||
| USA | Railroad Companies | 0016 | 0154 | 0223 | 0364 | 0463 | 0467 | 0480 | 0487 | 0625 | 0738 | 0952 | 1018 |
| USA | Railroad Companies | 1449 | 1460 | 1535+ | 2474 | 2508 | 2974 | 3005+ | 3243 | 3383 | 3416 | 3444 | 3457 |
| USA | Railroad Companies | 3470 | 3583 | 3612 | 3613 | 3617 | 3632 | 3640 | 3643 | 3644 | 3645 | 3649 | 3671 |
| USA | Railroad Companies | 3678 | 3682 | 3690 | 3702 | 3710 | 3721 | 3857 | 3884 | 4852 | 5005 | 5028 | 5035 |
| USA | Railroad Companies | 5049 | 5078 | 5144 | 5192 | 5196 | 5221 | 5231 | 5391 | 5393 | 5423 | 5542 | 5545 |
| USA | Railroad Companies | 5566 | 5679 | ||||||||||
| USA | Registry stamps | 3879 | 5192 | ||||||||||
| USA | Regulations | 0047 | 1425 | 1445 | 1607 | 2521 | 2526 | 2528 | 2595 | 3715 | 4486 | ||
| USA | Revenues | 0040 | 0059 | 0149 | 0338 | 0342+ | 0388 | 0454 | 0480 | 0481 | 0510 | 0946 | 0957 |
| USA | Revenues | 1608 | 2091 | 2561 | 2786 | 2824 | 2860 | 2962 | 2987 | 3045 | 3392 | 3393 | 3394 |
| USA | Revenues | 3425 | 3435 | 3486 | 3555 | 3614 | 3626 | 3629 | 3668 | 3674 | 3755 | 5015 | 5039 |
| USA | Revenues | 5050 | 5096 | 5102 | 5122 | 5125 | 5127 | 5143 | 5152 | 5155 | 5170 | 5347 | 5404 |
| USA | Revenues | 5411 | 5417 | 5418 | 5419 | 5551 | |||||||
| USA | Revenues - Checklists | 5571 | 5575 | 5602 | 5606 | ||||||||
| USA | Rubber Manufacturers | 0909 | 5605 | ||||||||||
| USA | S (punched) | 0466 | |||||||||||
| USA | Schermack perfins | 0020 | 0021 | 0104 | 0124 | 0141+ | 0176 | 0182 | 0337 | 0445 | 0457 | 0582 | 0605 |
| USA | Schermack perfins | 0618 | 0619 | 0633 | 0864 | 0958 | 0968 | 0970 | 1052 | 1229 | 1377 | 1909 | 2875 |
| USA | Schermack perfins | 2899 | 2959 | 3400 | 3413 | 3414 | 3417 | 3480 | 3579 | 3625 | 3684 | 3687 | 3688 |
| USA | Schermack perfins | 3737 | 3749 | 3791 | 3832 | 3883 | 4211 | 4469 | 4486 | 4904 | 5076 | 5119 | 5413 |
| USA | Schermack perfins | 5705 | |||||||||||
| USA | Schools, Colleges & Universities | 0325 | 0347 | 0468 | 0652 | 0896 | 0910+ | 0969 | 1441 | 1819 | 1910 | 1918 | 3409 |
| USA | Schools, Colleges & Universities | 3483 | 3606 | 3619 | 3639 | 3675 | 4012 | 4227 | 4495 | 4599 | 5030 | 5086 | 5238 |
| USA | Seebeck, Nicholas F. | 1406 | |||||||||||
| USA | SEP/./S | 0407 | |||||||||||
| USA | Shipping Companies | 0313 | 1213 | 3006+ | 3227 | 3386 | 3550 | 3551 | 3791 | 5243 | 5354 | 5421 | 5568 |
| USA | Simpson Crawford Co. | 2509 | |||||||||||
| USA | Special Delivery Stamps | 0950 | 3449 | 3591 | 3683 | 5161 | 5190 | 5226 | 5347 | 5358 | 5386 | ||
| USA | Special Handling Stamps | 3089 | 3231 | 3821 | 3823 | 3835 | 5174 | ||||||
| USA | Stamps perforated prior to authorisation | 0036 | 0154 | ||||||||||
| USA | Star of David | 2527 | 2565 | 3770 | 5056 | 5123 | 5161 | ||||||
| USA | State of Arizona | 1209 | |||||||||||
| USA | State of Connecticut | 3034 | |||||||||||
| USA | State of Hawaii | 0003 | 0032 | 0053 | 1212 | 1612 | 3598 | 4109 | 4315 | 5052 | 5223 | ||
| USA | State of Illinois | 0057 | 0534 | 0694 | 1227 | 1230 | 3540 | 5086 | 5097 | 5107 | |||
| USA | State of Iowa | 0018 | |||||||||||
| USA | State of Kansas | 1215 | |||||||||||
| USA | State of Maine | 5103 | |||||||||||
| USA | State of Michigan | 4907 | 5085 | ||||||||||
| USA | State of Michigan - official perfin | 0315 | 0336 | 1211 | 1225 | 3447 | 3456 | 3474 | 3781 | ||||
| USA | State of Minnesota | 0451 | 0671 | ||||||||||
| USA | State of New Jersey | 0529 | 0940 | 1219 | 1223 | 2202 | 4212 | 4470 | |||||
| USA | State of New Mexico | 1226 | 5027 | ||||||||||
| USA | State of New York | 3397 | |||||||||||
| USA | State of Ohio | 4911 | |||||||||||
| USA | State of Oklahoma | 0100 | |||||||||||
| USA | State of Pennsylvania | 3223 | 5128 | ||||||||||
| USA | State of South Dakota | 1946 | |||||||||||
| USA | State of Texas | 0006 | 0274 | 0289 | 0310 | 0433 | 1224 | 3445 | 4621 | ||||
| USA | State of Vermont | 1217 | 4002 | ||||||||||
| USA | State of Wisconsin | 1316 | |||||||||||
| USA | Submarine | 5066 | |||||||||||
| USA | Telephone Companies | 3407 | 3422 | 5113 | |||||||||
| USA | Tobacco Companies | 0120 | 0901 | 2513 | 3227 | 3792 | |||||||
| USA | Trust Companies | 0099 | |||||||||||
| USA | Typewriter Companies | 0963 | 2509 | 5151 | |||||||||
| USA | Underprints | 2042 | 2935 | ||||||||||
| USA | Unusual covers | 5171 | |||||||||||
| USA | Used in Cuba | 4460 | 4627 | ||||||||||
| USA | Watch and Jewelry Companies | 0901 | 1516 | 5226 | |||||||||
| USA | Womans Products Companies | 1514 | |||||||||||
| USA | Z Punch | 1913 | |||||||||||
| VATHY | - | 3882 | |||||||||||
| VENEZUELA | - | 1064+ | 2054 | 3092 | 3753 | 5350 | 5686 | ||||||
| VENEZUELA | Officials | 1267 | 3652 | ||||||||||
| WEST BENGAL | Revenues | 0025 | |||||||||||
| YUGOSLAVIA | - | 0291+ | 1859 | 2349 | 2716+ | 3376 | |||||||
| YUGOSLAVIA | Hungarian perfins on Yugoslav stamps | 0291+ | |||||||||||
| ZANZIBAR | - | 2718+ | 3065+ | 3658 | |||||||||
| ZEPPELIN COVERS | - | 0079 | 0105 | 3481 | 3543 | 3761 | 3810 | ||||||
| ZULULAND | - | 2718+ | 3065+ | 5029 | |||||||||
| << SECTION O-T | LINK BACK TO THE LIBRARY INDEX | SECTION A >> |
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