INERT DEACTIVATED. This is a rare WW2 German unfired 15cm (150 x 575R) high explosive round for the main deck guns German U Boat and Torpedo Boats and was used from its introduction in 1917 until the end of World War 2. The guns designation was 15cm/45 Ubts and 15cm/45 Tbts KL/45, the gun barrel being 45 calibres long. The projectile and cartridge case were separately loaded. The brass cartridge case is headstamped PATRONENFABRIK KARLSRULE NOV 1917 with 39 above it . The nose fused high explosive projectile is stamped on the side 4439 over be over lx 41 . The base is stamped 521 waffenampt Rm 4439 . There is a separate large screw in base plug with 2 sunken tightening lugs and it is stamped 4439 waffenampt M I 4 over 42 be 501c .4439 . The base is fitted with a tracer plug stamped Brivsch over f 15cm . An alloy nose fuse KzC/27(Lm) dated 3/41 is fitted, complete with its original stand off wooden rod. This round is in excellent condition and is very heavy at about 55 kg. Delivery by arrangement and at cost. (34). Sn 11061:4