Scientific American 1912-11-16.jpg Scientific American 1912-11-09ThumbnailsScientific American 1912-11-23Scientific American 1912-11-09ThumbnailsScientific American 1912-11-23Scientific American 1912-11-09ThumbnailsScientific American 1912-11-23Scientific American 1912-11-09ThumbnailsScientific American 1912-11-23Scientific American 1912-11-09ThumbnailsScientific American 1912-11-23

How gold is bought. Draining the last precious drops of molten gold from a large crucible in a brick-shaped mold.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner