For many decades the Marines wore the EGA on the pocket of utilities/BDUs, and this was the navy's equivalent, and sort of a "brand logo" when the services were trying to differentiate themselves with different camo patterns. It comes from the Navy Department seal and is sometimes abbreviated "ACE": anchor, Constitution, eagle.

Absolutely 100%.

Can you confirm that, I thought it may be but just don't have enough knowledge of the big band and jazz era. If it is, I have many more from the show.   Scott

Going to need to see more pictures particularly the lining and the sleave lining material. 

Mr Coyle (JFC) retired in 1938 with over 40 years service at Springfield Armory, so the SA/JFC was well before the 1942 barrel was installed.

1950s it is, that's when the SER marks started appearing

Unit marked CZ 24 WWII War Trophy brought home by Sol Denmark who was a member of the 531st Anti-Aircraft Artillery (AAA) Automatic Weapons Battalion. They were a United States Army unit that served in the European Theater during World War II. Activated at Fort Bliss, Texas, the battalion underwent extensive training in desert conditions as well as at Richmond Army Air Base and Fort Devens. The unit deployed to Europe and landed on Omaha Beach in Normandy, France, during the Allied invasion of Western Europe. From there, it advanced with Allied forces, helping push through the heavily fortified Siegfried Line and into Germany. The battalion’s primary role was to provide anti-aircraft defense for forward-deployed artillery units, protecting them from enemy aircraft while they supported ground operations. Organizational records show that the battalion included several batteries, notably Battery B and Battery D. Battery B served in campaigns in the Netherlands, Bavaria, and Germany, operating alongside formations such as the 30th Infantry Division (United States) and forces of the Third United States Army. The pistol has been shipped to me. I'm trying to learn more about the CZ24's. It looks like this one was made in 1931. From searching the forum, I believe all P marked pistols were issued to infantry units? What is the letter (D?) before the P signify? Thanks for any information. Keith

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Kinda ridiculous, you would think they would want you to keep stuff out of the trash and landfills. 

About 2 yeas came across an old 37mm that was made into a lamp. The wiring was old 30s or 40s. the covering worn out,  wire exposed, dangerous A fire hazard really. I decided I wanted to repair it. I bought a lamp kit from HomeDepot and gave it new wiring, set it up for a bigger bulb and gave it a new shade.   It's a 37mmx94mmR hotchkiss common type shell, specifically it's a US made Mk.II HE (High Explosive) shell for M1916 Gun.