Fine 3cm Colpocoryphe bohemica positive/neg: Ord. Llanvirn, Osek, Czech Republic

Description

Offered is a well preserved and exceptional positive/negative  example of the classic Czech trilobite
Colpocoryphe bohemica
(Vanek, 1965) from the Llanvirn Series; Aberreidian Stage (Dariwillian), of Osek, near Rockycany.
The fine articulated specimen is sharply preserved and in high relief. It is complete with both of the librigena intact and has minimal distortion.
LOW start bid for an excellent and displayable pos/neg. One for the species collector...............
Matrix pieces approx. 10cm  X 6cm X 1.5cm and 6cm X 4cm X 1cm.