Rudolph Appel (1816 in Neisse – 1898 in Southampton) was German printer and business man who played a major role in the development of anastatic lithography, a brand name that referred to already existing transfer lithography processes, and Photozincography in United Kingdom in the mid-nineteenth century.

After his business went bankrupt in 1858,^[1] he relinquished his anastatic lithography license to Samuel Cowell, and moved to Southampton where he was employed by the Ordnance Survey for the next thirty-five years.

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