BY W.F. STANLEY,
Details
A FOWLER'S CALCULATING SLIDE RULE,
by W.F. Stanley,
with instruction leaflet, trade label, in mahogany case--17¾in wide; a drum calculator, a "Lightning"adding machine with seven cursors, and a Fowler's circular calculator--2¾in. wide (4)
by W.F. Stanley,
with instruction leaflet, trade label, in mahogany case--17¾in wide; a drum calculator, a "Lightning"adding machine with seven cursors, and a Fowler's circular calculator--2¾in. wide (4)