Federal Infantry Button Hat or Cuff - Inventory Number: BUT 192
Federal infantry button, eagle with "I" in shield, two part button, hat or sleeve size, 15mm
Button was intended for infantry and depicts eagle with "I" in the shield, generally for officers. Backmark: "EXTRA / (star) QUALITY. (star)" dm, (period after Quality), no outer ring, there may be an inner ring which is usually obscured by the shank well, small size only.
Reference: Albert GI82 to GI91, Tice GI206 and GI215
Inventory Number: BUT 192