I have here an incredible vintage large format camera lens! The base is a ILEX optical co No. 4 with a Bausch & Lomb-Zeiss Tessar 5×7 lens. Patent date Feb 24th 1903 and serial number 2140678. Lens appears to be in good working order with no signs of fungus or any scratches. Feel free to message me with any questions or for more pics.
