10 дек 1949 г. - Phototypesetting

Описание:

This was discovered in 1949 and is the method of photographing characters onto a layer of film on which plates are created. The characters are developed as photographic positives on a light sensitive bit of film from a negative master containing the characters. This is then used to create a letterpress, gravure or lithograph plate through the photomechanical process.

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