Four-piece mold for collar or top of pot or jug, mold casting tool tools equipment base metal cast iron wood iron, cast turned Four-part cast iron mold for collar or top of pot or jug Rotterdam tin pourer tin casting tin casting Meeuws Druy craft 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.