Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 119
Geneva Lens Measure. Gauges Spherical Power,Cylindrical Powerand Axis. … ^W^PT\C^^^ CKJICAGO. REDUCED TO $7.50. The COHEN BROTHERS, LIMITED. Refraction and How to Refract, By JAMES THORINGTON, M.D., Offers a thorough up-to-date coursein optics by one of its greatest ex-pounders, the inventor of the Thor-ington System of Retinoscopy. 300 pages of soHd sense. 200 telling…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
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