Military Collectibles For Sale - WWI, WWII, Revolutionary War, Civil War Collectibles.We promote an extremely broad variety of items for sale today online. The Unertl company manufactured military sniper rifle scopes during World War II, most notable for its MST-100 (7.62mm) and MST-150 (.50 caliber) 10× scope used. I would mount one on a period rifle in a heartbeat. Unertl 12x 2 Objective 1 Tube Adjustable Parallax Recoil Spring Rifle Scope Sort Ordering Most Relevant // End Time // Price Low To High // High To Low Prices // Newest Listed Select Price 42 // 126 // 288 // 494 // 736 // 954 // 1412 // 1955. I think they were better scopes than the Weavers/ Redfields back then, on a par with Bausch&Lomb. Unertl 12x 2 Objective 1 Tube Adjustable Parallax Recoil Spring Rifle Scope - 2,000.00 J. He understood that a riflescope must be properly constructed to hold zero. Granted, it's no Schmidt&Bender, or Zeiss, or Leupold for that matter- but taken in the context of the era it was made in it's pretty good. In 1855, William Malcolm started building riflescopes.