In the Csanády-collection (Bátaszék, Hungary) there are two unpublished two-channelled
glass beads. They had been found on the banks of the river Danube in
Dunaszekcsô in Hungary by a fisherman and were presented to the
Csanády-collection in or after 1965 (Mrs Csanády pers. comm.). These
special beads are called Rippen-glasperlen (Noll 1963, 68) or
Trilobitenperlen (Haevernick 1974, 105) in the literature. One can set up
two main groups of Trilobitenperlen on the basis of decoration: 1. beads
with figurative decoration, which are also called two-channelled glass
cameos (Gesztelyi 1997) and 2. beads without figurative decoration. T.
E. Haevernick, who set up a basic typology for the Trilobitenperlen
further divided the non-figurative beads into Glatt-gerript type and
Kariert-gerript type (Havevernick 1974, 106)
