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Peter Treveris engraving of Trepanation for Handywarke of surgeri . Assessments Peter Treveris engraving of Trepanation for Handywarke of surgeri Engraving by Peter Treveris of trepanation From Heironymus von Braunschweig's Handywarke of surgeri English Woodcuts by Edward Hodnett Oxford University Press Peter Treveris engravings