Dallmeyer triple achromatic lens. Triple achromat lens, 38cm, c. f/14, slot for waterhouse stops; No. 3466. In sliding mount with flange. Dallmeyer triple achromatic lens. Triple achromat lens
Dallmeyer triple achromatic lens. F:30cm, f/14 slot for waterhouse stops with one stop marked 3. Lens number 7772. (M17/6) Dallmeyer Triple Achromatic Lens 1928
