Rare large fossil trilobite Viaphacops pirovanoi Bolivia Devonian

Description

Great and large trilobite Viaphacops pirovanoi, , from the middle Devonian Sica-Sica Formation, Bolivia.
Complete, large trilobite in original concretion. Only cracked open, some areas could be prepped out more.
Very difficult to obtain in this size and quality!
About 2.6" long.
See pictures!
Both halves of the concretion!