Wonderful cdv of a young boy leaning either on a camera or a tabletop stereoscope.   A fun addition is the visible arm of a parent on top of the camera or viewer steadying the child.  Possibly the photographers son but in either scenario a wonderful piece and in very good condition with decent tones and contrast.   There is some wear and small bump on the top of the image as seen.  By H. Mortimer. 
$55