FIG. 4 in The versatility of bone, ivory and horn - their uses in the Sheffield cutlery industry

FIG. 4. – Bone found on the site of the Sheffield Assay Office, Portobello Street, Sheffield, excavated by Northamptonshire Ar- chaeology Unit, 2009. Top: bone sawn to length; bottom: dense bone sawn from round the central core leaving distinctive bone scrap. Scale in cm.