细节
A 19th-century continental-pattern drawing set,
the brass and burnished-steel instruments, with scale rule and protractor in plush-lined leather-covered case with gilt tooling 7 3/8in. (18.8cm.) wide, the lid stamped in gilt J. Ravn.; and a polar planimeter by Stanley in case
the brass and burnished-steel instruments, with scale rule and protractor in plush-lined leather-covered case with gilt tooling 7 3/8in. (18.8cm.) wide, the lid stamped in gilt J. Ravn.; and a polar planimeter by Stanley in case