"Balance Trebuchet Changer"
18th century, copper and brass in a wooden box. Small box with trebuchet and a set of 4 cells and 12 strips of decigram weights housed in a concealed compartment. On the lid a brass plate indicates: "strength of the trebuchet 35gr - Sensitivity 1 decig". Inside, a laminated label contains information on the weight of the gold and silver coins. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato
