Civil War Providence Marine Corps of Artillery PMCA 1801 Coat Button

Non dug early Civil War Providence Marine Corps of Artillery coat button. The front has a great design featuring a centered cannon with stacked cannon balls and PMCA above and 1801 below. The reverse has a depressed c.1830's-50's R & W. ROBINSON * EXTRA RICH * backmark. The shank is straight with thread still attached. It measures 23 mm's in diameter. $175