Based on the WWII German Rheinmetall Pak36, the Soviet Union license built or copied the basic Pak design in a 45mm version as the M1937(53-k). Other than the upsized cannon and GAZ-A wire wheels, the Soviet M1937 is virtually identical to the German Pak. 

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The  M1937 was produced in very large numbers from 1937 to1943.  Despite the large quantity produced, the M1937 is not as prevalent in postwar Soviet bloc and other recipient countries compared to some Soviet produced artillery. Most likely this is due to the small caliber which had become obsolete as an anti-tank weapon though it remained effective as a light infantry gun firing HE and canister rounds in a support role. 

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A relatively large quantity did end up in Finland however, like this one, where it was used, or kept in inventory until apparently the 1970’s based on the August 1976 date stenciled on the shield.

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The cannon is painted in the Finnish camouflage pattern of the 1960’s/70’s. 

 

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