Double scalpel by Ferguson in case.
On application
A medical double scalpel by Ferguson in red Velvet and silk lined Case, Circa 1850. The scalpel was used to cut slices for microscope research. The thickness of the coupes can be set by the set screw and can be fixed by sliding mechanism.
Ferguson was an instrument maker trading in London  from 1826 to 1858. Measurements case 20 x 3 x 2,8 cm.
