[The following excerpt is published courtesy of DLRC Press and its author, John Feigenbaum. This information was originally published in 1994 in The Complete Guide to Washington Quarters.]
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Breen, Walter. Walter Breen’s Complete Encyclopedia of U.S. and Colonial Coins. F.C.I. Press, Inc. & Doubleday. New York, 1988.
Doyle, Al. “Why Not Washington Quarters?,” Coins. August 1991, pp.46-48.
“Endings and Beginnings… Final 1993 Mintages,” Coin World. February 7, 1994, p. 1.
Fivaz, Bill & Stanton, J.T. The Cherrypickers’ Guide to Rare Die Varieties, Second Edition. Published by the authors. Savannah, GA, 1991.
Ganz, David L. “Tribute to 200 Years of Freedom: The Story of How the United States Got Its Bicentennial Coinage,” The Numismatist. March-June 1975, pp. 499-519, 761-776, 1010-1029, 1239-1249.
Hicks, Herbert P. “The Washington Quarter Reverse: A Die Variety Bonanza,” The Numismatist. February 1986, pp. 244-261.
Pessalano-Filos, Francis. The Venus Numismatics Dictionary of Artists, Engravers, and Die Sinkers. Eros Publishing Co., New York, pp.36-37.
Spadone, F.G. Major Variety – Oddity Guide of United States Coins, 7th Edition. Published by the author. 1977.
Taxay, Don. The U.S. Mint and Coinage. Arco Publishing Co., Inc, New York, 1966.
United States Treasury Department. Annual Report of the Director of the Mint for the Fiscal Year Ended June 30, 1932. U.S. Government Printing Office, Washington D.C., 1932.
United States Department of the Treasury. Annual Report of the Director of the Mint: Fiscal Year Ended June 30, 1976 and Transition Quarter. U.S. Government Printing Office, Washington D.C., 1976.
Wexler, John A. & Miller, Tom. The RPM Book. Lonesome John Publishing Co., Newbury Park, CA, 1983.
Yeoman, R.S. A Guide Book of United States Coins. Western Publishing Co., Inc., Racine, WI, 1949, 1964, 1979, 1989, 1991, 1994.
