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"Morton's" ophthalmoscope

"Morton's" ophthalmoscope

1870-1920
Lennox Browne's laryngoscope with mirrors

Lennox Browne's laryngoscope with mirrors

1879-1900
Box type pocket sextant.

Box type pocket sextant.

1810-1826
Ophthalmoscope, rotating disc

Ophthalmoscope, rotating disc

1870-1920
Laryngoscopic set

Laryngoscopic set

1870-1910
Ophthalmoscope, with double rotating lens disc and two retinal mirrors

Ophthalmoscope, with double rotating lens disc and two retinal mirrors

1880-1920
Laryngoscopic set

Laryngoscopic set

1850-1900
Laryngoscopic set

Laryngoscopic set

1850-1910
Laryngoscopic set in leather case

Laryngoscopic set in leather case

1850-1900
Laryngoscope, spectacle frame type, 3 mirrors, handle and case

Laryngoscope, spectacle frame type, 3 mirrors, handle and case

1850-1860
Box containing set of inspection mirrors

Box containing set of inspection mirrors

1880-1920
Surveyor's pocket box sextant with leather case, made by John Dennett Potter, Poultry, City of London, London, England, 1855-1865. Consists of two circular lacquered brass plates with lid that acts as a handle when used. Fitted with Inlaid silver 134° scale (-5° to 160°) with 30' divisions and a silver vernier (1' div.). The index arm is rotated by a milled knob on the upper plate with two filter shades (red & green) operated by lever. The index glass is fixed with adjustment for the horizon glass. Fitted with magnifier (single lens) on hinged 40 mm swivel arm and choice of a large and a small pinhole sight but telescope missing. Marked ‘H O’ the property mark of the Hydrographic Office of the British Admiralty.

Box type pocket sextant with case.

1855-1865
Amblyoscope, hand held with eight small plastic pictures, made by Weiss, London, English, 1920-1940

Amblyoscope, hand held with eight small plastic pictures

1920-1940