Artificial left hand, Birmingham, England, 1914-1920

1914-1920

Compound monocular chest microscope with rack focusing of stage

1801-1825

Gould microscope on hinged pillar with flat Pritchard shaped foot

1800-1825

Tortoiseshell Ear Trumpet Hearing Aid

1801-1900

Chest pencil, England, 1914-1920

1914-1920

Compound monocular chest microscope Cuff focusing

1775-1800

Chest microscope compound monocular body tube with Cuff focusing and stage

1800-1819