Riich 1/35 German 3.7 cm Pak 36 Anti-Tank Gun (model kits x2)w/Metal gun barrel
- In Germany, which had been banned the development of weapons under the Treaty of Versailles, it was developed and tested in a top secret under the Rapallo treaty with the Soviet Union.
- 3.7 cm Pak 36 was also developed among them and deployed in 1928 under the name of Tak 28.
- In the Soviet Union it was also adopted as K1. As a 3.7 cm class anti-tank gun at that time, it was exported to each country with standard performance.
- It was exported to China and used in the fight against the Japanese army, it was picked up by the Japanese army and became a technical sample.