How To "Assay Manual" Book by Charles Fulton Gold-Fluxes-Silver-Furnace Plans 14 2 oz Cavity is 21/32"

2 oz Cavity is 21/32" X 1-1/4" X 5/16" Deep

for stamp and coin collectors

It comes complete with removable heat resistant tongs

about 45 to 55 million years ago

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 2 oz Cavity is 21/32"By 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