Hendrick Jansz., Clay pipe from the waste from Rotterdam pipe making, clay pipe smoking equipment smoke floor earthenware ceramic pottery h 2,9, pressed finished baked clay pipe from the waste of Rotterdam pipe making. Heel mark Misbaksel; fragment has jumped out of the cauldron during baking due to contamination of the pipe earth heel mark: HI in bead border archeology Rotterdam Hillegersberg-Schiebroek Hillegersberg Noord Hillegersberg Zuid Rechter Rottekade indigenous pottery craft workshop smoking tobacco Hendrick Jansz archaeological find in the soil: Judge Rottekade Rotterdam at number 71 in 1976 .