There is a few chips in the enameling. The inside is marked sterling but you can easy make out ng but the rest of sterling is faint. Each side has a scene of a eagle in flight about to grab a plane and the word USA. I do not have a ring sizer here from the front inside to the rear inside it is roughly 0.75 inches. Came out of a estate with some CBI items. I do not have any more info on it than that. Good luck finding another one. The item “WWII US Army Air Force Corps 21st Bomb Squadron 30th Group Sterling Ring” is in sale since Sunday, December 2, 2018. This item is in the category “Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Personal Gear”. The seller is “tiedup” and is located in Allentown, Pennsylvania. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Viet nam.
