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For years, various mechanical devices have been tried for the prevention of writers' cramp in those who have to write constantly. In one of the New York Sunday papers there recently appeared a picture of Paul Vosburg, a German inventor, using what was described as "blocks of wood" for this purpose. I have seen molds of dental wax used, but their weight is a serious objection. Miss Keenly, the clerk in my clinic at the University and Bellevue Hospital Medical College, was very much troubled with pain in her right arm and hand whenever she had much writing to do, and after experimenting with various methods to relieve her hand from cramp, had the apparatus made that is shown herewith. It has afforded relief to her.
Miss Keenly made the original model by holding a wet plaster-of-Paris bandage in her hand, thus getting an accurate mold of her palm and
Sayre RH. A DEVICE FOR THE RELIEF OF WRITERS' CRAMP. JAMA. 1924;82(21):1691. doi:10.1001/jama.1924.26520470003013a