A very rare 19th century silver plated
4 blade vaginal speculum. I have not been able to identify in the
literature. It is marked Maw Son and Thompson. It works on a similar
principle to the Graves speculum but the two small extra blades take
their leverage from the main blades. A retaining screw to fixes the
blades in an open position. In excellent condition with a <1mm
bubble under the silver plate at the tip of one of the blades.
