Details
A Chinese lignum vitae, ivory and mother-of-pearl inlaid folding rule,
-- 15½in. (39.4cm.) long folded; an ivory and brass parallel rule stamped John Scott; a sector by Cox Devonport; a scale rule by T & H Doublot; and four other items
See illustration (8)
-- 15½in. (39.4cm.) long folded; an ivory and brass parallel rule stamped John Scott; a sector by Cox Devonport; a scale rule by T & H Doublot; and four other items
See illustration (8)