Catalogue : mathematical and engineering instruments and materials manufactured and imported by James W. Queen & Co. (1880)
James W. Queen & Company · James W. Queen & Co. · leaf 57
A 490. No. Pbice A 490. Crozet Protractor, 8-inch \* reading to 1 minute, . . . $-lo.00 An extremely useful and practical instrument, which may be used alone: :\ straightedge, and angles set off without the necessity of bringing the centre of the protractorover the starting point.
