88mm German WWI U-Boat Brass Cartridge Casing 88x390mm-R inert shell case
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German 88x390mm-R cartridge case made in 1906 for secondary armament for large coastal warships and river gunboats at the end of the 19th century and later used for older torpedo boats and U-boats during World War I. Case is made of BRASS. Quite scarce to find these days.
