Wonderful photo, but I really don’t think it’s from the 1870s. Judging by the style of the men’s clothes and the apparent presence of electric lights, I’d put it solidly in the 20th century, probably 20s.
The same goes for the “1873” photos on the timeline – the print shop photos are probably teens or 20s, the cooking and sewing photos are almost certainly from the 40s.
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