A good graduated set of 6 plough plane blade irons by ROBERT SORBY of Sheffield.

Each is marked 'ROBT SORBY & SON SHEFFIELD', unusually these are not stamped with the relevant size number at the top.

Sizes: 5/32 inch (4mm), 1/4" (6mm), 13/32" (10mm), 7/16" (11mm), 1/2" (12mm) and 9/16" (14mm) wide at the cutting edges.

8⁹/₁₆" to 9"  (218 - 228mm) overall length.

A few minor surface spots, please see images.

May require sharpening before use.