[1] Koenig's letter in The Times, 8th December, 1814
[2] Koenig's letter in The Times, 8th December, 1814.
[3] Date of Patent, 29th April, 1790, No. 1748,
[4] Koenig's letter in The Times, 8th December, 1814.
[5] Mr. Richard Taylor, one of the partners in the patent, says, "Mr. Perry declined, alleging that he did not consider a newspaper worth so many years' purchase as would equal the cost of the machine."
[6] Mr. Richard Taylor, F.S.A., memoir in 'Philosophical Magazine' for October 1847, p. 300.
[7] The price of a single cylinder non-registering machine was advertised at 900L.; of a double ditto, 1400L.; and of a cylinder registering machine, 2000L.; added to which was 250L., 350L., and 500L. per annum for each of these machines so long as the patent lasted, or an agreed sum to be paid down at once.