Details
A lacquered-brass and iron variable slit apparatus,
by Adam Hilger, the adjustable arm engraved The Polytechnic, the grey-painted base -- 14¼in. (36.2cm.) wide, in the original pine carrying case
by Adam Hilger, the adjustable arm engraved The Polytechnic, the grey-painted base -- 14¼in. (36.2cm.) wide, in the original pine carrying case