Microscope Disc Revolver in Case, by Beck, London, c. 1865

A copper alloy microscope disc revolver with a blackened copper alloy disc forceps and a set of three copper alloy plates each with 24 black discs numbered 1-72, for use in the disc revolver. The instruments are stored in a hinged wooden box with a clasp fastening and wooden supports inside.

(.1: Disc revolver; .2: Disc forceps; .3: 3x plates of discs; .4: case)