The need for a quality control of Antwerp oak panels for painters in 1617 became structured with detailed regulations imposing the panel makers to issue each of their panels with the maker’s personal house mark and upon approval by the dean of the panel makers’ he with a hot iron would brand each accepted panel with the Coat of Arms of Antwerp. This poster shall for the first time present arguments and documentation of a comparable practice of issuing panels with a personal house mark on panels produced in the Northern Netherlands. Especially one panel maker’s mark has been traced a sufficient number of times to propose that this practice was established in Dordrecht. It shall further be argued that this may suggest that these incidents wou...