Police supervising the grain trade in Amsterdam; Broadening downward; elongated; convex; silver plaque; with four lobes on top and ending in point on bottom; mounted on two pins; leaving a long threaded. Obverse: coat of arms within circumference.; Amsterdam; anonymous; c. 1400 - c. 1885; silver (metal); engraving; l 7.7 cm x l 6.6 cm x w 4.6 cm x w 5.1 cm x w 36.70 gr