Four-piece bronze mold for bottom of pot or jug, mold casting tool tools equipment base metal bronze , cast Four-piece bronze mold for bottom of pot or jug Rotterdam tin tinker tin tin Meeuws Druy artisan Shapes are from the originally 18th century Rotterdam tinnegieter J Druy. The large molds that were not signed or dated were the property of the tinker guild and were rented to the small tin caster.