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Resident of Bethesda, Maryland. Married to Deborah with five children. Employed as a certified public accountant.

Author of American Half-Cents - The Little Half Sisters in 1971. Two thousand copies were printed. A second edition was published in 1982. He made a presentation at the ANS COAC in 1984. The EAC honored Cohen with their annual award in 1990. obit: NUM 103 Sep 1990 page 1504; DOD: SSDI


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5 entries found for [year:1990]

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    Roger Cohen Coin Envelopes 1990

    Roger Cohen Coin Envelopes

    Roger Cohen coin envelopes. Date is approximate.  (Note, this item was previously listed in the Tettenhorst archives as "box 3" but is more appropriately categorized here.) 

    Favorite Coin 1990

    Favorite Coin

    Notes related to Roger Cohen's favorite coin.

    Condition Census Listing of Half Cents 1990

    Condition Census Listing of Half Cents

    Cohen's condition census listing of half cents. Of considerable importance, this document summarizes years of numismatic research regarding the finest surviving examples of United States half cent varieties.

    Large Cents 1990

    Large Cents

    Folder on Cohen's large cent collection with worksheets, varieties owned, pedigree.

    Dennis Patterson Correspondence 1990

    Dennis Patterson Correspondence

    Assorted correspondence with Dennis Patterson.

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