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• The United States Cents of the year 1794, second edition (Chapman, Samuel Hudson )

• The United States cents of the years 1795, 1796, 1797 and 1800 (George H. Clapp)

• The United States cents of the years 1798-1799 (Clapp, George Hubbard )

• The United States cents of the years 1801-1802-1803 (Newcomb, Howard Rounds )

• The United States Coinage of 1793, Cents and Half Cents : Descriptions of the various dies bearing that date with notes on the establishment of the mint (Crosby, Sylvester Sage)

• United States copper cents, 1816-1857 (Newcomb, Howard Rounds )

• United States Counterfeit Detector with Sheet of Engravings (Beazell, John F.)

• The United States Counterfeit Detector, and Teachers' Guide (Heath, Laban)

• United States Early Silver Dollars from 1794 to 1803 (Bolender, Milferd Henry )

• United States Mint at Philadelphia (James Rankin Young)

• United States Mint, Philadelphia (King, Moses)

• United States notes; a history of the various issues of paper money... (Knox, John Jay)

• United States Pattern, Trial, And Experimental Pieces (Adams, Edgar Holmes)

• United States Proof Coins 1936-1942 (Burdette, Roger W. )

• United States Store Cards : a list of merchants' advertising checks, restaurant checks, and kindred pieces issued from 1789 up to recent years, including many of the tokens which passed as money and known as Hard Times Tokens (Adams, Edgar H.)

• The Universal Bank Note, Draft and Check Detector (Reedy, James)

• The Universal Cambist and Commercial Instructor (Vol 2) (Kelly, P.)

• The Universal Cambist and Commercial Instructor (Vol. 1) (Kelly, P.)