p. 65: "Charles Grover Thurber" should just be Charles Thurber.

p. 67: "Christopher L. Sholes": his preferred way of referring to himself was probably C. Latham Sholes.

p. 106: The Tippa S is sometimes carriage-shifted.

p. 118: I should also have mentioned British eBay (ebay.co.uk).

p. 129: "DIN 2013" should be DIN 2103.

p. 152: Better not use carburetor cleaner, it can be harsh.

Have you spotted more errors?

Just let me know.