During the Civil War, the Red Army captured a wide variety of trophies, including Lee Enfield rifles. The main weapon we had was the Mosin rifle and I don't think that anyone was seriously involved in trophies. They just lay in warehouses and waited in the wings. And they waited. Perhaps the photo shows a Baltic modification of the rifles - for example, in 1924 Lithuania acquired a large batch of these rifles. In 1940, they also went to Soviet warehouses.
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