WWII period. It measures 1" X 1." Don't miss out on adding this piece of WWII US military/Coast Guard history to your collection. Our photos should tell you just about all of the rest. Please email us with any questions or concerns that you may have. You will be answered in a timely manner. If asking on or near the weekend, give us a little more time to respond, as we may be away on business.
Also just to note, our shipping charges include insurance. We have had too many problems with the U.S. Postal service. We insure every package to protect both the buyer as well as us.