German incendiary tail fin ww2

Relic tail fin that fell on Woodbury Common, 7 miles Southeast of Exeter, no drop date but found in 1941 and manufactured in 1937. Some paint loss to the base from the heat of the burning bomb. The bomb consisted of a cylindrical body made of magnesium alloy and filled with thermite, an incendiary compound, to which was riveted a three-finned steel tail. These bombs did not explode, but on impact the needle in the igniter was driven into a small percussion cap which in turn ignited the thermite filling and, ultimately, the alloy casing itself which produced heat that was sufficient to melt steel. These bombs were 34.5cm long, and 5cm in diameter. As seen in photos in excellent condition for its age. Any questions please dont hesitate to drop me a message.