Rare Vintage Mickey Mouse pinback

Rare Vintage Mickey Mouse pinback Unlike many of the Mickey pins - this one is different and not like any others I can find online. The first noticeable difference is the "shadow" image on his left ear. The nose does stretch out a bit but it looks like the original design of Mickey Mouse. Then on the pants it has two black buttons instead of two yellow buttons that are small in shape. The back of the pin seems to extend a bit farther down that his shorts end but he does not have a tail. I've had this pin a VERY long time (Im in my 40's now) so I dont know the actual date - but I know its old. Small blemish on the right side bottom of his shorts that seems to be under the enamel. Pin is 1" long and about .50" wide. Sold as is seen in listing. Please message me with any questions and thanks for looking!