This is the front of the 486 Microprocessor Keychain.
Ok, while browsing the local thrift stores for hackable electronics, I ran across this little guy in the keyring tray for 29 cents. I couldn’t pass this up. I remember all the good times I had with our first x86 computer… (It was a 386 12/24 Mhz, which was upgraded to a 486/DX2 66Mhz soon after).
The keyring is an Intel 486 Processor mounted in a plastic keychain casing.
“Intel486™ Microprocessor – Intel®: The Computer Inside™”
Also, see the front side of the keychain.