


Wheatstone-type pseudoscope in leather case
1857-1861

Pseudoscope, 1845-1855
1845-1855

Pseudoscope, 1850-1860
1850-1860

Wheatstone's Pseudoscope (c.1850-60)
1850-1860
Pseudoscope Viewer
Pseudoscope, made by C. D. Ahrens
1845-1855
1857-1861
1845-1855
1850-1860
1850-1860
1845-1855