“Extremely valuable documents.” These documents contain photos, illustrations, and text detailing engines, weapon systems, etc. They were left behind by a Russian person a long time ago… There are 39 pages in total, and this is the "English" version. Please examine the images to make your judgment. According to the Russian person, this is a catalog from Uralvagonzavod, the world's largest main battle tank manufacturer. I will send it within 24 hours.