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Ships within 48 hours · Estimated delivery Nov 12 - Nov 17
about 45 to 55 million years ago
Maybe a little less
Ruler not included
for stamp and coin collectors
They are the local miners who make these) The Frame is 6" x 8" and 1-5/8" Deep
How To "Assay Manual" Book by Charles Fulton Gold-Fluxes-Silver-Furnace Plans 14 about 45 to 55 millionBy Chas. Fulton, published in 1911, 215 pages, soft bound high qualitycopy of out of print book. Contains the assay mixtures and fullinformation on each step of the assay including some data on assayingplatinum. Fire assays have been the method of detecting gold for thelast 5000 years. Chapters are on tools, sampling, weighing, reduction,crucible assays, cupellation and parting, special methods and errors inthe assay. An advanced book on assaying
