An Ivory Stanhope Lens and a Compass Microscope

Description:

An Ivory Stanhope Lens and a Compass Microscope, 18th/19th century, the lens within a turned ivory cylinder, lg. 2 1/8 in.; the microscope having a lens and handle on arms which fold into the brass body with sliding specimen holder, overall length 3 1/4 in.
Estimate $300-500