We have a few thousand Military standard rivets (mostly used in aerospace), with certificates, all made in the US by major manufacturers, Can you auction these?

Look up the phone number for Dependable Don AKA Don found it . Is the monthly Auctioneer at the auction house.

Call them

There is an auctioneer that has gathered auction in adjacent auction building next to main building . I believe first Sunday of month, rest of month they stock room for event. You probably would want to try it online first for move views rather than wait for auction. Still a place where you can unload stuff to dozens of registered buyers.