Details
A miscellaneous collection of rules
A miscellaneous collection of rules, scales, measures and slide wheels; a planimeter in case; a French cross in case; a Fowlers twelve-ten calculator in case; two tape measures; and a clinometer by Short and Mason in leather case (defective)
A miscellaneous collection of rules, scales, measures and slide wheels; a planimeter in case; a French cross in case; a Fowlers twelve-ten calculator in case; two tape measures; and a clinometer by Short and Mason in leather case (defective)