Don't have a proof pre-1960's,the (true) old beauties this thread will produce is going to be spectacular.
Nice idea for a thread with some great posts already. Unfortunately the oldest US proof I have is a 1978 set with incredible frosting on the reverses The oldest world coins proof will be 50 next year
This one is a bit special to me. It came from a special friend, many years ago. It was about as far back as I could afford when I was building my proof type set. I'm sad but just busted the set up for auction. It was time to pass it on.
Forgot to mention it's not my earliest but I like it the most.If I did at least have an early 1900's example then it would be in.