Below is the very 1st copy made, a hand-written message documenting the date and location.

In the late Chester Floyd Carlson invented the process that would become known as xerography. Previous reproduction techniques, such as the mimeograph, used liquid chemicals and made wet copies, whereas Carlson's technique produced dry copies.

Xerography, advert submitted and designed by Kellenberger–White (2013) –Type OnlyUnit Editions

Xerography, advert submitted and designed by Kellenberger–White –Type OnlyUnit Editions

Xerography- a photo coping technique invented in 1938 by Chester Carlson

Chester Carlson (February 1906 – September was an American physicist, inventor, and patent attorney. Chester invented Xerography or electrophotography, now commonly known as photocopying.

collage, Leipzig, xerography

collage, Leipzig, xerography

Xerography – Kellenberger–White

Kellenberger–White is a London-based graphic design consultancy.

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