This is a vintage 1922 Wollensak Pocketscope Sr miniature telescope with a brass and leather case. It is a collectible item from the WWII surplus, with a size of 3 inches. The telescope was made in Rochester NY, USA and features a model name of Pocketscope. The item's brand/maker is Wollensak, and it falls under the categories of telescopes, optical devices, and science & medicine collectibles. This miniature telescope is a piece of history that would be a great addition to any collection.