Original U.S. WWII M8 Pyrotechnic 37mm Flare Signal Pistol by Eureka Vacuum - Serial E-021306 Magazines They required their own model

They required their own model Tripod with different style legs and a very large brass soup-plate traversing dial

There is also RA in a circle

It received a second DUC for participation in a low-level bombing raid on enemy-held oil refineries at Ploesti

or just Anpo (安保) for short

Original U.S. WWII M8 Pyrotechnic 37mm Flare Signal Pistol by Eureka Vacuum - Serial E-021306 Magazines They required their own modelOriginal Item: Only One Available. Very nice condition 37mm big bore signal pistol of WW2. The barrel has studs for attachment to a flare port in the fuselage of large aircraft such as bombers. The right side of the frame is marked inside a triangle: EC V C1942U. S. PROPERTYPISTOL PYROTECHNIC M 8 The abbreviation at the top indicates manufacture by Eureka Vacuum Cleaner Co., one of several contractors employed to make these pistols. This example is