As well, these lenses are all of the same type, but varying apertures. But the numbers are huge compared to the numbers of these lenses that I think have been made. But first, I notice that for a certain lens type I found a list of online, there are ever increasing serial numbers on the cell, then a lens code and for these lenses the years of manufacturing are provided also ever increasing. Two brass mounts for bullets are present.Quick question on Zeiss lens sets and the serial numbers inscribed on them.
The eyepiece has no stated magnification each microscope can be focused with the connecting eyepiece in place. The connecting eyepiece uses prisms for a vertical split view of a bullet placed under each microscope.
Eyepieces on the individual microscopes are same company, 5x, no stock number. Objective on each microscope is 3 (3x?), Carl Zeiss Jena stock number 96-002. Overall height with removable eyepiece is circa 12-13" two brass adjustable bullet mounts fitted wood case for eyepiece. Original wood case for mounted unit is lost.ĭual Carl Zeiss Jena monocular microscopes (serial numbers 254939 no stock numbers found) mounted on a mahogany wood base with felt on bottom, 10-1/4" deep x 12-1/4" wide notched for sliding in and out of a storage case (not present) with a removable connecting monocular eyepiece (Carl Zeiss Jena Nr437 - unknown if a stock or serial number) that that sits loosely over the eyepiece of each microscope and allows the two units to used a single microscope for viewing ballistic materials. No stock numbers or City of Hoboken identification. Purchase date not known, but serial numbers place the date of manufacture at circa 1928-1932. According to donor, former Police Captain, it was discarded when moving from Hoboken City Hall to One Police Plaza, 1990's. Ballistics comparison microscope formerly owned by the Hoboken Police Department.īallistics comparison microscope formerly owned by the Hoboken Police Department.
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