![](http://www.alamy.com/thumbs/6/A210D0C9-3E39-44CF-AE37-F6CA9AB3AAFF/EWA4D7.jpg)
Polariscope, vintage engraved illustration. Trousset encyclopedia (1886 - 1891).
Size: 5000px × 4353px
Photo credit: © Patrick Guenette / Alamy / Afripics
License: Royalty Free
Model Released: No
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