retrofutureground: Yerkes Observatory, Solar prominences around entire disk, 01-04-1916. Lantern slide; 5.8 x 5.7 cm

tags: wish you were here,

from: https://midnightclusterfuck.tumblr.com/post/122280695010

more here tumblr.freepornpreview.net/midnightclusterfuck

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