Thanks to the magic of stereoscopy, these images provide a remarkable illusion of history in three dimensions. The technique used two near identical photographs, each taken from a slightly different angle and then mounted side by side. These 'fooled' the eyes into seeing a three dimensional image when the cards were viewed through a suitable stereoviewer.
Condition: All cards are present and in very good condition. The bookform cases show minor age-related wear and fading. The handheld stereoscope is in very good condition.
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