WW1 US Army Shelter half replacement type rivet buttons NOS (three)

Description

WW1 US Army type replacement rivet buttons, you will need a short flat copper upholstery tack to go through the center to flatten out and hold the button in place. Easy fix to replace those missing buttons with a period repair. USMC shelter halves as well. Thanks for looking and good luck!
This is a three piece rivet repair, I have the hard impossible to find parts.  Three rivets as pictured. Paint them if you like...