Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A pair of strabismus diagnostic and exercise cards in black and white. The card to the left, 6, has the image of a branch of a cherry tree with 2 cherries and a bee to the left of the cherries; the card to the right, 6a, has the image of a branch of a cherry tree with 2 cherries and a bee over the branch. Stereoskopische Bilder für schielende Kinder.
Copyright:
This item may be under copyright protection. Please ask copyright owner for permission before publishing.
Related Title(s):
Hidden treasure and Is part of: Stereoskopische Bilder für schielende Kinder.; (DNLM)52331180R