I bought this today from the original owner. He got it as a Christmas gift as a kid and rode it his whole life, or at least until the mid 70's. He couldn't remember when he hung it up in the barn but said it had to have been 20 to 30 years ago. He remembered taking the chain guard off and painting it as a teenager but other than that and the front tire it appears to be all original. Sadly the chrome is pitted pretty bad. The Cadet speedo lens is cracked and fogged over but the mileage reads 2450. Anybody know how to date this one?