After one week's production at furniture factories in Lahti and Helylä over 2,000 mines had been produced. By the end of the Winter War 133,000 had been delivered. The m/S-40 was an improved version of the mine that differed in detail.
After one week's production at furniture factories in Lahti and Helylä, over 2,000 mines were produced. By the end of the Winter War, 133,000 had been delivered. The m/S-40 was an improved version of the mine with specific differences.