Machine for carbon dating
Indeed, heavy reliance on calligraphy continued in offices for decades after the first practical typewriter was marketed by Remington in 1874.
If he made a copy soon after a letter was written, only a second or two was needed to make a good impression.
A copying clerk would begin by counting the number of letters to be written during the next few hours and by preparing the copying book.
Suppose the clerk wanted to copy 20 one-page letters.
The damper had a reservoir for water that wet a cloth, and the clerk wiped the cloth over the tissues on which copies were to be made.
(See Plate 5A) As an alternative method of dampening the tissue paper, in 1860 Cutter, Tower & Co., Boston, advertised Lynch's patent paper moistener (Plate 5B) with the claim that "it does away with the use of the brush, wet cloths and dipping bowls, and dampens the paper sufficiently by a single roll of the machine." Next, letters were written with special copying ink, which was not blotted.