Original U.S. WWII Sperry T-1B Bombsight Head by AC Spark Plug Division of GMC MG 34 Reciever Assembly which was under contract by

which was under contract by the Japanese Army in China for transportation

The wood stock is about 48 inches long

The mounts appear to be of brass and also engraved overall

January 27th 1938

The operation of the Geiger tube is basic in principal

Original U.S. WWII Sperry T-1B Bombsight Head by AC Spark Plug Division of GMC MG 34 Reciever Assembly which was under contract byOriginal Item: Only One Available. The Mark XIV Bomb Sight was a bombsight developed by Royal Air Force (RAF) Bomber Command during the Second World War. It was also known as the Blackett sight after its primary inventor, P. M. S. Blackett. Production of a slightly modified version was also undertaken in the United States as the Sperry T 1, which was interchangeable with the UK built version. It was the RAF's standard bombsight for the second half of