Soviet Mosin-Nagant M91/30 rifle that was seized by Finnish forces during the Winter War (1939-1940) or Continuation War (1941-1944) between Finland and the Soviet Union. The M91/30 is a bolt-action rifle chambered in 7.62x54mmR, widely used by the Soviet Army during World War II. After capturing these rifles, the Finnish military often modified them to suit their needs, which included adding new sights, reinforcing parts, and sometimes even shortening barrels. Captured M91/30 rifles may bear Finnish proof marks, such as the "SA" stamp, indicating that the rifle was inspected and approved by the Finnish military. These rifles were highly regarded for their durability and accuracy, making them valuable assets for the Finnish forces. The modifications, as well as the historical significance, make Finnish-captured M91/30 rifles sought after by collectors and enthusiasts of World War II-era firearms.