1881 Yorktown Centennial medal. Musante GW-963, Baker-452A. Copper, Bronzed. SP-64 (PCGS).50.7 mm. Deep mahogany bronze with some lighter areas in the fields and a bit of unevenness in the patina that is likely due to problematic bronzing. Satiny and lustrous with a few dark deposits on the surface that mostly require magnification to see.Ex William Spohn Baker Collection, to the Historical Society of Pennsylvania by bequest, November 15, 1897.