Amazon.com: Easy Model KV-1 1942 Russian Army Heavy Tank : Arts, Crafts & Sewing
File:KV Tank Variants.jpg - Wikimedia Commons
The KV-1 tank was a mystery even to the USSR's allies, but it didn't remain this way forever. Both the US and UK received a sample to study : r/TankPorn
Supertest: KV-1 Screened Premium Soviet Heavy Tank