ASSORTED EYE TRAINING / OPTOMETRIST'S DIAGNOSTIC STEREOVIEW CARDS AND VIEWER, UNCOUNTED LOT, comprising a Keystone stereoviewer and a box housing a large assortment of compatible stereoview cards which includes a seemingly near-complete Dvorine "Animated Fusion Training Charts" set, with manual explaining its use for diagnosing and strengthening the eyes against strabismus/other optical ailments, plus several other optometry/medical diagnostic oriented views including Volumes II and III of Oatman - Diagnostics of the Fundus Oculi, consisting of around 80 views of various horrific medical issues to patients' eyes and accompanying medical history/diagnosis. Various makers. Late 19th/early 20th century. 7 3/4" LOA (viewer closed).

From the private collection of John and Val Tull, York, PA.

Very good to excellent overall condition, most cards excellent, some with light to moderate routine wear and bending plus discoloration; several large splits and crushing damage to the Dvorine box housing.