Original U.S. WWII USAAF Bombardier's Type-A Model 943 Chronometric Tachometer in Case Grouping - 2 Items Martini-Henry Bayonets and the single barrel band

and the single barrel band has a large ring on the bottom

They also can be disassembled

Hiram and Kitty Mann retired to Titusville

Year of Manufacture: late 19th Century

and it has correctly never been sharpened

Original U.S. WWII USAAF Bombardier's Type-A Model 943 Chronometric Tachometer in Case Grouping - 2 Items Martini-Henry Bayonets and the single barrel bandOriginal Item: Only One Available. These are very nice U. S. Army Air Forces Type A Chronometric Tachometer models 943, complete in their original rubber case with basic instructions. The tachometer is housed inside, and was a device for taking precision measurements for making bombing measurements. The tachometers are in very good condition with a few minor scratches, glass front and property tag riveted to backs stating U. S. ARMY AIR FORCES. The