A magic lantern lens by Negretti & Zambra & signed'NEGRETTI & ZAMBRA LONDON' on the brass barrel. It features a rack & pinion focusing mechanism, and measures just over 3" in length with 2" diameter lenses that are in very clean condition. The aperture dimension is 25mm square and the thread mount is 62.6mm in diameter, measured with a vernier scale. It weighs just over 400 grams, is in good condition with no dents and has undamaged lenses. Please study the photos as they are part of the description, and I will be happy to answer any questions if I can.
This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "nicke11" and is located in this country: GB.This item can be shipped worldwide.