Collecting Proof issues of each circulating coin goes back to 1936, when the United States Mint began striking Proof Sets specifically for collectors.  This set includes 7 years of Proof Sets, from 1958 to 1964. Included in each set is a Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Washington Quarter, and  Franklin or Kennedy Half Dollar.  For the Lincoln Cent, 1958 marks the final year that the Wheat Ears reverse was featured  before the Memorial Reverse was displayed in 1959.  The year 1964 is special for numismatists for several reasons. First,  in 1964, the Mint decided to halt production of Proof coinage and did not strike them  1965 to 1967.  Second, 1964 marks the first year of the Kennedy Half Dollar, stopping production of the Franklin Half Dollar before it had reached the standard 25 years of mintage.  This collection of Proof coinage, all graded in Proof 67 condition, is a stunning collection that spans an important numismatic  time  period.  To increase your numismatic knowledge, included with this purchase is the soft cover version of ''A  Guide Book  of Franklin & Kennedy Half Dollars,'' Third Edition.