Antique 1904 Stereoscope Viewer by Keystone Monarch including 3 Slides

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Antique 1904 Stereoscope Viewer by Keystone Monarch including 3 Slides :
$169.00

1904 Keystone Monarch Stereoscope Viewer

This is a very nice “Monarch” Keystone Stereoscope 3D stereo viewer with 3 Stereograph cards of the aftermath of the San Francisco Earthquake in the early 1900’s. The lenses are clear with no cracks or chips. It was manufactured in the USA by Keystone View Co. Meadville, PA, with a patent date of 1904. The cards are in good condition. It measures 15”x11”x6” and weighs 2.6 pounds.