Aker or copper thin-walled pot, pot holder soil found brass copper metal, hammered riveted Aker or copper thin walled pot with remnants of attachment for handle edge of bottom and wall with rivets Side wall is made up of several parts and even repaired repaired archaeology Rotterdam City Triangle Groenendaal underground pit cooking nutrition food preparation ketellapper coppersmith craft repair archaeological find in the soil Rotterdam underground pit Groenendaal (direction Blaak) 15-06-1977.