The Bausch & Lomb 311927-120 Biological Microscope is a Bausch & Lomb instrument identified by the part number 311927-120. The listing describes it as a Bausch & Lomb ESM Microscope with the same model reference, confirming the 311927-120 designation. This exact identification helps verify the product as a Bausch & Lomb ESM biological microscope bearing the 311927-120 part number.
