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Pseudoscope

Pseudoscope, 1850-1860

1850-1860

Wheatstone-type pseudoscope in leather case

1857-1861

Pseudoscope, 1845-1855

1845-1855

Wheatstone's Pseudoscope (c.1850-60)

1850-1860
Pseudoscope, made by C. D. Ahrens, London, England, c. 1850. Consists of brass supporting stand with small leather case containing two stamped metal discs and cylindrical eyepiece unit

Pseudoscope, made by C. D. Ahrens

1845-1855
Pseudoscope viewer. Wooden panel bearing two brass eyepieces fitted with lenses and reversing prisms. Lever adjusts prism separation. Each eyepiece rotates. Slot in panel and marks on front indicate handle or stand fitted. Gives pseudoscopic effect on standard stereocards. Inscription partially illegible "Brevete ..."

Pseudoscope Viewer