More on the House typewriter (no photo, though)

Also at Type-Writer.org:

1. 1820: Duplex Typograph by J. Purkis The origins of the typewriter are complex. The narrative certainly begins with Henry Mill’s 1714 patent for “impressing writing on parchment,” a conceptional device that...
2. Horton’s Typograph (ghost of the Bennington?) Known more commonly as the Horton Typewriter, the Horton Typograph garnered “considerable interest” when introduced in 1882. Its inventor, Edward E. Horton, was a court...