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Indeed, heavy reliance on calligraphy continued in offices for decades after the first practical typewriter was marketed by Remington in 1874.

Until the late 18 century, if an office wanted to keep a copy of an outgoing letter, a clerk had to write out the copy by hand.

The method was also tested on films stills printed in Germany and Russia, as well as amateur prints and photographs in the collection of the Museum of Modern Art.

Offices employed copy clerks, also known as copyists, scribes, and scriveners, men who typically stood, or sat on high stools, while working at tall slant-top desks.Exposure times for early photographic processes were quite long, and portraits often contain blurred images of sitters moving a head or an arm.A small number of daguerreotypes survive today, many of which are dotted with spots, streaks, and scratches, as seen in the images below. Severa, Dressed for the Photographer: Ordinary Americans and Fashion, 1840-1900, 1995 In 1851, Frederick Scott Archer developed the collodian process, which allowed unlimited positive prints to be produced from one negative glass plate image.Offices need more than one copy of a document in a number of situations.Typically they need a copy of outgoing correspondence for their records.

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Figure PLS-NIR model to predict the print date of fiber based gelatin silver photographs Data provided are for informational purposes only.