Haarlem the birth-place of printing, not Mentz:

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Bibliographic Details
Author / Creator:Hessels, Jan Hendrik, 1836-1926
Imprint:London, E. Stock & Co., 1887.
Description:xiv, 85 p. 26 cm.
Language:English
Subject:Printing -- History -- Origin and antecedents
Printing -- Origin and antecedents.
History.
Format: Print Book
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/3294429
Hidden Bibliographic Details
Other authors / contributors:Coster, Lourens Janszoon, approximately 1370-1439