Voigtlander HELIAR 36cm (360mm) f/4.5 AERIAL lens in barrel. Serial number #129555. Made in Germany, by Voigtlander. Circa 1935. Five element lens. Non coated glass. This lens will cover up to 8x10"  Maximum aperture of F/4.5. Front filter diameter is about 87mm. Rear filter diameter is about 82mm. Lens is 105mm or 4" long. Weight is about 4 lbs. 2.7oz. Mounting flange diameter is 5.5". Will require a 6x6" lens board or larger. Click aperture settings of f/4.5, f/5.6, and f/9. Lens is in Ex- or 6 of 10 cosmetic condition. Many marks, and some black paint missing from the lens barrel. Clean vintage optics. Couple of fine cleaning mark on the front and rear that will not affect your photos. No dents or dings. No separation. Vintage large format 36cm f/4.5 Voigtlander Heliar lens. Early vintage lens.  Great for portrait or landscape photos. Originally used as an aerial lens. Includes a custom mounting flange. Sells AS-IS with NO RESERVE at a price of $995. I have LOT more Voigtlander and other German Lenses,  BRASS barrel lenses, Kodak Ektar lenses, Large Format cameras and Accessories, Vintage and Collectibles and Soft Focus Lenses. More great buys on my other auctions, eBay Store and Web Page.