Sharpening stone or coticule

Inventory number: PC10-101-190
Name of the object: Sharpening stone or coticule
Material: lithic, basalt.
Type: daily use object
Shape: rectangular
Dimensions: 6 x 4 cm. Thickness: 1 cm.
Chronology: Roman Late Republic
Survey: july 2010
Provenance: SUPI 4.
Description: Rectangular sharpening stone, touchstone or coticule of basaltic tuff with bevelled edges