Fragment of foot, bottom and part wall of corrugated cup, drinking glass drinking utensils tableware holder soil find glass forest glass, free blown and formed imposed and twisted glass wires Fragment of foot bottom and part wall of Goblet in clear light green glass (forest glass) is On the foot edge are vertical 15 glass threads attached that turn sharply to the left at the transition from foot to wall and run diagonally upwards over the calyx. pontil mark under the slightly raised bottom (1.6 cm). Foot wall greatly rejuvenated. pedestal (4 cm versus 5.1 cm) archeology Rotterdam rail tunnel drink Soil discovery: rail tunnel Rotterdam.