Encyclopedia of Greater Philadelphia

Telephones

Prototype Telephone Used at Centennial

A black and white line drawing of a prototype telephone

The telephone made its public debut at the 1876 Centennial Exhibition. Alexander Graham Bell demonstrated his prototype device, illustrated here, by reciting lines of Hamlet through it to an astonished crowd. (Google Books)

Google Books

The telephone made its public debut at the 1876 Centennial Exhibition. Alexander Graham Bell demonstrated his prototype device, illustrated here, by reciting lines of Hamlet through it to an astonished crowd. Google Books

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