These are cuprous buttons with die-stamped designs. We know this because there is a split anvil seam on the backs of the buttons. Examples from Davidsonville with designs include (from left to right) basket weave, floral, and a script A design on an artillery button from the War of 1812 period. This type of button is found in archeological contexts dating from 1812 to 1820.
Clothing, Attire, Metal
(L to R):2004-666-46-3-20, 2004-666-46-3-13, 2005-602-25-3-13
Lot 35 Tavern Cellar