Vintage Medical Glass Slide Showing an X-ray of the Tibia and Fibula

This is a Vintage Medical Glass Slide Showing an X-ray of the Tibia and Fibula, possibly produced for use in a magic lantern.  The slide measures 3.25" high by 4" wide with its edges bound with black tape.   The back has two labels: a yellow label marked "W.U. School of Medicine Dept. of Illustration  no. 51-4829" and a white label penciled with "Jeffries  4-12-50."  It is believed that this slide was created by the Washington University School of Medicine.  Its date of production is unknown.  This Vintage Medical Glass Slide Showing an X-ray of the Tibia and Fibula is in very good condition with no signs of wear or damage.  (Due to its fragility, this slide will be shipped in a box rather than in a padded envelope.)