A hand cut had forged saw blade with set, water quenched S275JR steel based on rygh find 419 (also listed as C7185) from Sanner in Norway Viking period back saw set in an ashwood handle, designed for use on wood, classed as a backsaw with double tines tanged into the handle, can be sharpened with a fine file, designed for use as a push pull saw, presumed woodworking or bone and antler working use. made in Sheffield England by daegrad Tools