Skylab PRS Hand Cancel Variations

Mission	Postmark	Notes	Reference Number
Skylab 2 - First Manned Mission		Hand Cancel - Jun 22	None
Skylab 2 - First Manned Mission		Machine Cancel - Jun 23	These are always extremely poor
Skylab 3 - Second Manned Mission		Sep 25	None
Skylab 3 - Second Manned Mission		Sep 26	None
Skylab 4 - Third Manned Mission		Distance between A & M is smaller - Feb 8	None
Skylab 4 - Third Manned Mission		Distance between A & M is wider - Feb 8	None
Skylab 4 - Third Manned Mission		Wavy Lines to Right of Postmark - Feb 8	None
Skylab 4 - Third Manned Mission		Wavy Lines to Right of Postmark - Feb 9	None

Notes:
1)

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