Oeconomic Branch of the Hollandsche Maatschappij der Wetenschappen; medal awarded to Jacobus Dykwel from Haarlem.; Golden medal. Obverse: man in Roman clothing; representing Patriotism; holding a laurel wreath in his right hand and with his other hand putting an oak wreath on the head of Industry; who holds horn of abundance in hand and leans against beehive; in the background rising sun within an inscription. Reverse: inscription within laurel wreath and inscription; Carefulness; Diligence; 'Diligenza' (Ripa); crowning with laurel; Haarlem; Jacobus Dykwel; Johann Heinrich Schepp; The Hague; 1785; gold (metal); engraving; t 0.4 cm x d 3.4 cm x w 32.54 gr