The picture below shows a larger view of this Old Embossed Tin Metal Skyrocket Jet Aircraft Jewelry Pin. The pin is not dated but it is old. We do not know if it was used as an advertising premium or prize. Embossed near the tail is the Air Force symbol of a star and stripes. It is marked on the two sides as follows:
SKYROCKET MADE IN JAPAN
The jet pin measures about 2-7/8'' long. It appears to be in mint condition as pictured.