I remember s a child my Dad loving Skippy Peanut Butter, and being frugal recycle or reused everything, as a result a have a large cabinet in my garage that has been used for misc screws bolts and whathaveyous for over 60 years. The peanut butter jar being the favorite for all manner of nails and screws takes up most of the 6'x3' cabinet. I have been around it since i can remember and use it constantly as my own hardware store. During a project I pulled one the Skippy jars of saved screws down and realized it was different than any other of the countless jars stored in there...So this is actually my first reach out on a chat to find an expert on when this was issued and if there are any others. I have done extensive searches on-line and can not fine the "Accepted American Medical Assn." stamp on any. Most have a white dot where the price stamp was to go, or different lettering. This one is in very good condition. Any help would be appreciated. The Ball jar is a 192-15

and 14A stamp.