Late 1800s Antique Bausch & Lomb Rochester NY Brass Microscope, Box, Lenses Plus Без бренда

Late 1800s Antique Bausch & Lomb Rochester NY Brass Microscope, Box, Lenses Plus Без бренда
Late 1800s Antique Bausch & Lomb Rochester NY Brass Microscope, Box, Lenses Plus Без бренда - фотография #2
Late 1800s Antique Bausch & Lomb Rochester NY Brass Microscope, Box, Lenses Plus Без бренда - фотография #3
Бренд: Без бренда
~ 166 068 ₽ 1 800.00 $

Характеристики

Serial number 38581. Measures: Height: 16” (fully extended), 13 ½” (fully retracted), Length: 6 1/2'', Width: 4 ½”.
Original Mahogany Wood box measures Height: 16 1/2", Width: 8 5/8", Depth: 9 3/8".
3 of the 4 canisters are empty. One contains Immersion Oil
Comes with everything shown in photos.
 
Excellent condition as seen in photos, all original. All parts of microscope seem to be working.
Color shades/tones may vary depending on my background and lighting conditions as well your or my monitor settings. All my items are either older collectables or antiques and as with anything of this nature there may be slight imperfections or manufacturing nuances. Please view and inspect all the images, click on the images to enlarge for better detail. 
International buyers must use priority international shipping by ebay rules for loss or damage, Thank You. 

History:
Initially manufacturing single lens microscopes, they graduated to producing compound microscopes in 1874.  They used different methods for focusing the instrument: a crew thread focus control on the nose end of the barrel, later discontinued in 1878, a draw tube similar to several other manufacturers and a rack and pinion system.  Manufactured in 1876, the first professional model towering 17” tall was the Bausch & Lomb Model 76. Mainly constructed of brass, this model had nickel plating and hard rubber mounts for the eyepieces.  A friction-less fine focus was achieved by using a micrometer screw located at the rear of the tube.  Redesigned as a binocular microscope in 1883, it was one of the first commonly used binocular scopes.  Originally selling for $200, this model is a fine collectible today.