Scottish-born scientist and inventor (1847–1922) who conceived the telephone, founded the Bell Telephone Company, and invented various devices for aiding the deaf. Partly-printed DS, one page, 9 x 4.5, June 29, 1891. Certificate from the American Association to Promote the Teaching of Speech to the Deaf presented to Miss Mary O. Sherman having “been duly elected a member of The American Association to Promote the Teaching of Speech to the Deaf, and having paid the annual assessment of Two Dollars, is entitled to all the rights and privileges of membership.” Signed at the bottom in black ink, “Alexander Graham Bell,” as president of the association. Double matted and framed with a portrait of Bell, and a larger image of an artist’s rendition of Bell’s first telephone call, to an overall size of 29 x 22. In fine condition, with two vertical folds, one through a single letter of signature.
Having several family members who were deaf—including his mother and wife—Bell’s primary scientific goal was to develop equipment to assist the hearing-impaired, with the telephone and the microphone initially conceived for that very purpose. The devices were also a reflection and continuation of the work long-performed by his father with deaf-mutes. In 1890, more than a decade after he received a US patent for his invention, Bell established the American Association to Promote the Teaching of Speech to the Deaf, with the objective of promoting oral communication, and was elected the New York City-based organization’s first president. An excellent example of Bell’s focused involvement with the hearing-impaired. Oversized. Pre-certified PSA/DNA and RRAuction COA.
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