SAA, Stadsarchief Amsterdam, NA 1947/513-517, Nots D. Doornick. Contract (Power of attorney, Commercial credit) ofAlbert Warnsinck, Abraham Varlet, Gaspar Fernandes da Costa, Jasper Varlet
SAA, Stadsarchief Amsterdam, NA 1947/513-517, Nots D. Doornick. Contract (Power of attorney, Commercial credit) ofAlbert Warnsinck, Abraham Varlet, Gaspar Fernandes da Costa, Jasper Varlet