duffield p w (4 Ergebnisse)

Zustand: New. In.

Zustand: New.

Hardcover. Zustand: Fine. No Jacket. 301 pages illustrations 24 cm OCLC 2578209 black cloth no dustjacket ; General contents: Introduction to coin collecting -- Collecting United States coins -- Background of American coinage -- Large and small cents -- Silver dollars -- Other regular issue copper and silver coins -- Gold coins --Commemoratives -- Mint engravers and dies -- Patterns ; FINE. Book.

Hardcover. Zustand: Fair. Second Edition. 98 pages plus two pages of advertisements. Six black and white fold-out plates. Intended to "offer a little useful knowledge to directors of English gold mining companies on some of the simple principles that are too often ignorantly, or designedly, ignored, or surrounded with mystery by inexperienced mine managers; also to give to millmen a few suggestions, founded on a tolerably wide experience, in the commercial handling of many kinds of ores." - from Preface. Text divided into the following parts: Losses in Gold Amalgamation; Treatment of Gold Ores; Concentration of Gold and Silver Ores; Methods of Concentration. Prior owner's details in pencil upon front free endpaper else unmarked. Binding intact. Minor foxing. Red cloth covers soiled and stained with above-average wear - gilt lettering still legible. A worthy copy of this practical vintage work.