SAA, Stadsarchief Amsterdam, NA 99/72, Nots: J. F. Bruijningh. Contract (Power of attorney, Commercial credit) of Sijmen Tack, Louis del Beck, Pieter Carpentier, Paulus van Caerden
SAA, Stadsarchief Amsterdam, NA 99/72, Nots: J. F. Bruijningh. Contract (Power of attorney, Commercial credit) of Sijmen Tack, Louis del Beck, Pieter Carpentier, Paulus van Caerden