I recently purchased a large brass barrel lens with waterhouse stop slot and rack and pinion focusing possibly made around the 1870's - 1880's. The lens has no engraving on the exterior of the barrel identifying its manufacturer but has the letters KORN stamped on the waterhouse slot partition inside. I have tried to research the name KORN without any success, and wonder if anyone here in the forum has come across a brass lens manufacturer named KORN or can enlighten me as to its possible place of manufacture. Thank you in advance for any information you can provide!
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