Leica  DUAL RANGE Summicron-M 50mm f/2 CLOSE FOCUS rangefinder lens. Serial #1787190. Made in Germany. Circa. 1960. 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", and clean glass. 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 9 of 10 cosmetic condition. NO dents or dings. Some small wear marks around on the barrel. Very good glass. Lens has been CLA'D best as possible for a vintage lens in 2022. Front element has only a couple fine cleaning/coating marks on the front element that can be seen with a flashlight. These  couple of coating/cleaning marks are fine, and will not affect your images. Smooth lens focusing. Smooth working aperture blades with no oil on them. Clear scales. Comes with Leica Caps, Close-up "eyes". Nice clean shooter Leica 50mm D.R. lens with very clean optics. Sells with NO RESERVE at price of $1375.  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.