Leica  DUAL RANGE Summicron-M 50mm f/2 CLOSE FOCUS rangefinder lens. Serial #1704463. Made in Germany. Circa. 1959. Leica Catalog 11918M. Perfect for Leica M2, M3, M4, M4-P and Leica M5. Could be use on Leica M8, M9, M10 (rangefinder focusing) and Leica M240 (live view mode) for MACRO shooting only. The Rangefinder Eyes will provide correct parallax view for Macro / CLOSE-UP work only. WILL NOT focus on infinity on digital Leica M cameras. No separation in the "eyes", but one very small minor chip in the rectangular eye that will have no affect on your viewing. Could be used on digital MIRRORLESS camera's like: Olympus OM-D, Panasonic G9, Panasonic GH-5, Fuji X-Pro3, XE-3 and Fuji XT-2, Sony NEX-6000, Alpha NEX 5000 and full frame Sony A-7rIV with the proper adapter. Aperture from F/2 to F/16. Focusing from 48cm. Scales are in feet & meters. Filter size is E39. Lens is in Ex or 8 of 10 cosmetic condition. NO dents or dings. Some small wear marks around on the barrel. Good glass. Lens has recently been CLA'D best as possible for a vintage lens in 2023. Front element does have many small fine VISIBLE cleaning/coating marks on the front element that can be seen with a flashlight. These coating/cleaning marks are fine, and should not affect your images. Smooth lens focusing. Smooth working aperture blades with no oil on them. Few small dust spots inside visible with flashlight ONLY !  Clear scales. Comes with Leica Caps, Close-up "eyes". Nice shooter Leica 50mm D.R. lens. Sells with NO RESERVE at price of $1095.  I have LOT of other Leica M vintage cameras and Leica M and TM lenses, Leica R lenses, Leica Copies, 35mm Rangefinder and Vintage and Collectibles. There are always unique & unusual items on my other Auctions, eBay Store and Web Page.