Bausch and Lomb Microscope/ Model WK 7758/ Believe it is dated 1948/ It is listed as Class 31 and 33/ One eye piece is missing/ The remaining eye piece is marked B&C 10x WIDE F/ The are four lenses/ 1. Marked Spencer 97X NA 1.25 0.1mm/ 2. Marked B & L Optical Co, Rochester NY 4mm 0.65 43x T 86767/ 3. Marked B&L etc, Divisible 10x 16mm .25 WL 1629/ 4. Marked B&L etc, 30mm 0.09 YN 6277/The staging is geared. Side to side works, Front to back works, but comes off gears if pushed to far, can be easily fixed by just pushing it back the other way. Weight is about 17 pounds. Cannot guarantee condition of lenses. I am not familiar with microscopes. Shipping will include insurance.