"Diamond Dealer's Scales, 17th Century Amsterdam"
Carat balance - Trebuchet, 16th century, Martinus de Backer in de Oude Brugh Steegh in de goude Munt Balans tot Amsterdam. 2.3 x 11.1 x 5.55 cm. 5 weights out of 7. Blackened wood decorated with a shield within a leather backing. With tweezers.