Here is a great stereoscope used to view stereoscopic 3D cards that were popular at the turn of the century. Though they usually have a maker's mark, this one appears to be unmarked. This stereoscope is in working condition and operates great, with minor signs of wear from normal use and handling. This stereoscope does not have the normal fold down handle, but instead has clips that likely once attached to a base. Please note that two screws on the bottom of the viewfinder have been replaced with contemporary brass screws.
The photographed stereo card is not included with this item. However, many stereo cards are available for purchase from Memory Hole Vintage.