Question: How many 13mm cartridge anti-tank rifles were produced for World War I?
Sentence (from "Anti-tank warfare"): The first developed anti-tank weapon was a scaled-up bolt-action rifle, the Mauser 1918 T-Gewehr that fired a 13mm cartridge with a solid bullet that could penetrate the thin armor of tanks of the time and destroy the engine or ricochet inside killing occupants.
Relevant evidence: No