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The Practical Gold-worker, Or, The Goldsmith's and Jeweller's Instructor in the Art of Alloying, Melting, Reducing, Colouring, Collecting, and Refining ...

George Edward Gee

出版	C. Lockwood & Company, 1877
URL	http://books.google.com.hk/books?id=3yBBAAAAYAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN