Armstrong model of Schuknecht Gelfoam & Wire prosthesis, designed as a substitute for a stapes bone. Edward W. Stevenson, Jr., the donor of this item, was an otolaryngologist in Birmingham, Al. He purchased it from Richards Manufacturing Co., in Memphis.
Ref: Arthur F. Schuknecht, “A New Stapedectomy Prosthesis,” Archives of Otolaryngology 80 (1984): 474.