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Pair of turn pin spectacles

Pair of turn pin spectacles

1823-1825
Waywiser by W. Harris and Co.

Waywiser by W. Harris and Co.

1816-1835
Micrometer achromatic refracting telescope with lens cap

Micrometer achromatic refracting telescope with lens cap

1825-1835
brass contact goniometer

brass contact goniometer

1825-1835
Brass double-frame sextant.

Brass double-frame sextant.

1830-1839
Culpeper microscope in pyramidal box with trade card on door

Culpeper microscope in pyramidal box with trade card on door

1801-1830
Mathematical sector, British, 1813-1839

Mathematical sector, British, 1813-1839

1813-1839
Case, probably for drawing instruments sharkskin covered wood

Case, probably for drawing instruments sharkskin covered wood

1816-1839
Gunner's rule in ivory and brass

Gunner's rule in ivory and brass

1818
Altazimuth theodolite, British, 1813-1839

Altazimuth theodolite, British, 1813-1839

1813-1839
Kaleidoscope by William Harris & Co., London, 1825

Kaleidoscope by William Harris & Co., London, 1825

1816-1839
"Improved pocket chondrometer" with swan-neck pivot

"Improved pocket chondrometer" with swan-neck pivot

1816-1839
Kaleidoscope, with stand and accessories, in case with key, according to label made for David Brewster, by William Harris and Co., United Kingdom, approximately 1830

Kaleidoscope, made by Wm. Harris and Co. with stand and accessories

1830
screwdriver from altazimuth theodolite, 6 inch, by W. Harris and Co., London, England, 1813-1839

Screwdriver from altazimuth theodolite

1813-1839
Miniature thermometer, mercury in glass, by W. Harris and Co., 50 Holborn, London. Fahrenheit and Reamur scales; polished wood case (25mm. x 70mm). Wellcome No. B936

Traveller's Thermometer, 1813-1839

1813-1839
Altazimuth theodolite, 6 inch, by W. Harris and Co., London, England, 1813-1839

Altazimuth theodolite, British, 1813-1839, with accessories

1813-1839