Details
A 19th-Century steel and brass parallel rule,
unsigned, the articulated arms with pierced decoration; a lignum vitae and brass 12-inch folding rule, stamped with a maker's trade mark and labelled Paris (? inches), and an ebony and brass parallel rule
See Illustration (3)
unsigned, the articulated arms with pierced decoration; a lignum vitae and brass 12-inch folding rule, stamped with a maker's trade mark and labelled Paris (? inches), and an ebony and brass parallel rule
See Illustration (3)