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Plastic protractor with brass indicator pin

1880-1920

Polarized light demonstration apparatus by Newton & Co.

Lippich type Polarimeter, German, 1905-1914

1905-1914

Brass microscope, used by Horace Dall

1880-1920

Microscope slide containing diamond microwriting, used by Horace Dall

Abbe Refractometer, used by Horace Dall

1918-1920

Prism and aperture scale, used by Horace Dall

‘The Diagnostic’ optical instrument, used by Horace Dall

1910-1947

Optical instrument, used by Horace Dall, London, England

Magnesium Fluoride, used by Horace Dall

Balls up to 035, used by Horace Dall

Microscope components, used by Horace Dall

Microscope slides with microwriting, used by Horace Dall

Set of 5

1870-1880

Optical instrument with wood handle

1860-1920

Lens(?), or some part of optical instrument, solid

1880-1935

Optical instrument with wood handle

1860-1920

Optical cabinet

1766

Wooden instrument containing a hand revolved disc which bears smaller coloured discs

1830-1890

Part of optical instrument

1880-1930

Brass mount and two nickel discs

1900-1930

Optical instrument with wood handle

Optical instrument with wood handle

1860-1920

Optical instrument with wood handle

1860-1920

Optical instrument with wood handle

1860-1920

Optical instrument with wood handle

1860-1920

Optical instrument with wood handle

1860-1920

Spectro-prisms, used by Horace Dall

Brass microscope, used by Horace Dall

‘Service’ Metallurgical microscope, used by Horace Dall

1935-1945

Bottle of Alumina cement, used by Horace Dall

Microscope stages with clips, used by Horace Dall

Assorted microscope pieces, used by Horace Dall

Magnesium Fluoride, used by Horace Dall

Lens blanks, used by Horace Dall

Microscope stages with clips, used by Horace Dall

Spectro-prisms, used by Horace Dall

Newton's disc apparatus

1880-1900

Stand only from optical instrument

1920-1940
Fourteen microscope eyepiece lenses of various designs, with metal and plastic casing, two by Zeiss, the rest unsigned. Part of a collection of optical instruments used by Horace Dall.

Microscope eyepiece lenses, used by Horace Dall

Twenty-three microscope lenses, and 11 metal ring mounts for eyepiece lenses, unsigned. Part of a collection of optical instruments used by Horace Dall.

Microscope lenses and ring mounts, used by Horace Dall

Amoxicillin tablet and paper marked ‘fluorite’ containing five clear discs. Part of a collection of optical instruments used by Horace Dall.

Amoxicillin tablet and fluorite, used by Horace Dall

Twelve assorted metal and glass components from Dall’s vacuum coater. Part of a collection of optical instruments used by Horace Dall.

Components from Horance Dall’s vacuum coater

Apocromat 16mm brass case with screw cap, containing a copper and brass microscope objective lens with aperture 0.95, and written note dated 19/2/1982, Carl Zeiss, Jena, Germany; Plastic case, containing a copper and steel microscope objective lens with aperture 1.40, Carl Zeiss, Jena, Germany; Microscope objective lens inscribed ‘1 1”/2 NAO. 197’, C Baker, London, England; Copper and brass microscope objective lens with aperture 0.95, Carl Zeiss, Jena, Germany; Brass microscope lens case with screw cap, labelled ‘Zircon FRONT N.A. 1.92’, containing written note dated 21/1/1962, unsigned; Black metal case with silver screw cap, containing a brass microscope objective lens hand inscribed with ‘H Dall 1957’; Orange plastic case, containing a copper and brass microscope objective lens with aperture 0.95, Carl Zeiss, Jena, Germany; all part of a collection of optical instruments used by Horace Dall

Seven microscope lenses and cases, used by Horace Dall

Diploscope with 'Dog' test card used for practising dissociating accommodation and convergence, made by Clement Clarke Ltd., London, W1, England, 1920-1950.

Diploscope with 'Dog' test card

1920-1950
Wedge refractometer, with working note, unsigned. Part of a collection of optical instruments used by Horace Dall.

Wedge refractometer used by Horace Dall

English culpeper type microscope, unsigned, with shagreen and vellum tube, wooden stand, brass stage and ivory slide in oak case, 1720-1740.

Culpeper type microscope, unsigned, shagreen and vellum tube, with case

1720-1740
47 lenses and 2 metal rings, unsigned. Part of a collection of optical instruments used by Horace Dall.

Microscope lenses, used by Horace Dall