The U.S. Mint and Coinage: An Illustrated History from 1776 to the PresentArco Publishing Company, 1966 - 400 pages Comprehensive history of American federal coinage by a numismatic historian, with a section on twentieth century coins and the sculptors who modeled them |
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Page 92
... planchet cutters at the Mint , each of which required one operator . Together , the machines could punch out from fifteen to eighteen thousand planchets daily . Milling The planchets were now weighed , and the " heavies " adjusted with ...
... planchet cutters at the Mint , each of which required one operator . Together , the machines could punch out from fifteen to eighteen thousand planchets daily . Milling The planchets were now weighed , and the " heavies " adjusted with ...
Page 166
... planchets were fed into their respective tubes and forwarded piece by piece to be weighed and assorted . At the end ... planchets down their respective tube , at the bottom of which the lowest planchet was caught by a revolving feeder ...
... planchets were fed into their respective tubes and forwarded piece by piece to be weighed and assorted . At the end ... planchets down their respective tube , at the bottom of which the lowest planchet was caught by a revolving feeder ...
Page 303
... Planchets are poured onto riddle to remove clipped pieces and shruff . 17. Planchets receive their upset edge in the milling machine . 18. The planchets , which have just been annealed , are shown pouring out of the furnace . 19. The ...
... Planchets are poured onto riddle to remove clipped pieces and shruff . 17. Planchets receive their upset edge in the milling machine . 18. The planchets , which have just been annealed , are shown pouring out of the furnace . 19. The ...
Contents
The 1776 Continental Currency Coinage | 3 |
Proposals of Franklin Morris and Jefferson | 11 |
Experiments in Contract Coinage | 26 |
Copyright | |
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adopted American appears approved artist assay authorized Bank Barber bill bullion called cent charge circulation coinage Commission committee Congress consideration considered contract copper currency December Department devices dies dime Director eagle engraver establishment expense fact February finally five further give given gold Government grains half half dollar hand head House impression interest introduced issue January Jefferson John July later less letter Liberty machine March medal metal Mint models Morris necessary nickel obverse operations original passed patterns Peace dollar Peale persons Philadelphia piece planchets possible practice prepared present President proposed purchase quarter reason received reduced referred relief replied Representative respect reverse Robert Secretary seems Senate sent silver coins standard striking struck submitted suggested Treasury United Washington weight wrote York