细节
A folding boxwood rule,
with brass cursor, signed WELLINGTON FECIT CROWN COURT SOHO London; a Captain Field's Improved Roller Parallel Rule, inscribed J. Coombes Devonport; a slide rule by Faber Castell, in case -- 23¼in. (59cm.) long; and a McFarlane calculating cylinder, with mahogany ends, and three paper scales -- 5¾in. (14.6cm.) long (4)
with brass cursor, signed WELLINGTON FECIT CROWN COURT SOHO London; a Captain Field's Improved Roller Parallel Rule, inscribed J. Coombes Devonport; a slide rule by Faber Castell, in case -- 23¼in. (59cm.) long; and a McFarlane calculating cylinder, with mahogany ends, and three paper scales -- 5¾in. (14.6cm.) long (4)