IBM COMPUTER Vintage Lot Of Pins, Buttons Smithsonian Institute Microchip, Etc..

Description

IBM Computer Pin Pinback Brooch High Performance Circuit Microchip
Nice lot of 3 pins. 2 are vintage IBM. One is unbranded but was with the other 2 pins when acquired.
Large pin is High Performance IBM Pinback with printed pin on a metal backing under a plastic protection cover.
Black and silver pin is pressed plastic with a clutch back.
Circuit/Microchip pin is sealed under clear enamel with a clutch back. From the Smithsonian Institute gift shop.
All pins are vintage and will have age wear. No breaks and are in overall good vintage condition.
All pins work well and hold securely.
From a smoke free residence
Please contact with any questions, thank you.