This is a lot of vintage military pins. I did not find any markings on the pins. The pin backs on the crossed cannons are marked PATENT PENDING. The smallest pin looks like it might be sterling silver. The pins range in size from 3/8 of an inch to 1-3/8 inches. Some of the pins have enameling on them and some do have an age patina. They have not been cleaned or polished. Please let me know if you have any questions. Thanks for stopping by.