Fragment of foot, soil and part of berkemeier, berkemeier drinking glass drinking utensils tableware holder soil find glass forest glass, hand-blown glass application Fragment of foot bottom and part of stem of berkemeier in clear light green glass (forest glass) With lightly raised bottom pontilemark All around pinched foot edge. Probably two rows of thorn buds on the trunk of which one row with three thorn buds is present archeology Rotterdam rail tunnel drink Soil discovery: rail tunnel Rotterdam.