This stereo card was manufactured and published in the U.S.A. by Keystone View Company and copyrighted by Underwood & Underwood in the 1920s. It was made for use in a stereoscope and features a stereoscopic pair of images that would appear to be 3D when viewed through the device.
The photographs in this stereo card depict coal mining - coal strata and miners shoveling and drilling for a blast.
The card is identified by the following serial numbers: P146, P-V20389, and P146-(V20389).
This card is in used but good condition. Please see the photographs for a full description, as the object in the photos is the exact item you will receive. This item will ship wrapped in archival plastic bags to prevent wear during shipping.
