A good 18inch Admiralty type brass protractor roller parallel ruler signed G.Lee & Son The Hard Portsmouth in fitted mahogany box; an ALLAN's Saccharometer signed P.Stevenson Maker Edinburgh No 3376 in fitted mahogany case; a Sikes Hydrometer signed Buss Hatton Garden London in fitted mahogany case with cloth bound edition of Sikes Tables dated 1875 (4)