Union Society of the Civil War veteran hat button VN38

Unusual 16mm example listed as Alberts VN38 with a hat or shoulder board screw on attaching device instead of a shank. Please view my present and upcoming Civil War Union and Confederate, Indian War, franternal organization, cadet, veteran society, political, colonial, militia, railroad, RR, police & fire department and other historic military and uniform type buttons, plates buckles, insignia and badges. Happy bidding!