Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 270
s completed in a short time, and thereduced silver washed first with some ammonia-cal solution and then with distilled water. Themore ammoniacal and concentrated the solu-tion, the more rapid the reduction. The stripof copper should not be too thin, as it is con-siderably attacked, and any little… … IVJeriden gritannia Qo. MANUFACTURERS OF STANDARD CTRO, SILVER AND GOLD
Jewelry · Jewelry trade
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