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Vernieuwing van de eed aan de…
Jacob Folkema, 1742, print, RP-P-OB-83.770
Wapens van prins Willem IV en Anna…
Jacob Folkema (possibly), unknown, 1734, print, RP-P-OB-83.697
Wapens van prins Willem IV en Anna…
Jacob Folkema (possibly), unknown, 1734, print, RP-P-OB-83.696