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    Description

    1964-1965 Inco 25 Cent Test Pieces
    From the Estate of Inco Official Kenn Henderson

    1964-1965 International Nickel Company 25 Cent Test Pieces. In 1964-1965, extensive non-precious metals coin testing was done outside the Mint at different facilities, including International Nickel Company, Dupont, and Corning Glass Works. The pieces in this lot are from the estate of Kenn Henderson, an officer of Inco at the time. Andrew Pollock wrote extensive background information about these pieces in his 1994 reference United States Patterns and Related Issues, pages 443-447. We strongly recommend that bidders refer to Pollock's in-depth treatment of these little-known patterns. We have grouped the 58 pieces in this lot into three categories: 1964 Inco Large Head 25 Cent Test Pieces, 1965 Inco Small Head 25 Cent Test Pieces, and Miscellaneous "Component Pieces." Included are:

    1964 Inco 25 Cent Test Pieces - Large Head
    Pollock-5340. 95% nickel, 5% silicon on 2% "Permalloy" Core. Plain Edge. 2 pieces.
    Pollock-5350. Pure nickel (Ni engraved in right obverse field). Plain Edge. 2 pieces.
    Pollock-5350. Blank Planchet for above. Pure nickel. Type 2. Plain edge. 1 piece.
    Pollock-5351. 45/55 nickel/copper (45 engraved in right obverse field). Plain edge. 1 piece.
    Pollock-5353a. 75/25 copper/nickel (CuNi engraved in right obverse field). Plain edge. 1 piece.
    Pollock-5365. 75/25 copper/nickel on 60% copper core. No engraving in field. Reeded edge. 1 piece.
    Pollock-5365a. 75/25 copper/nickel on 60% copper core. No engraving in field. Plain edge. 8 pieces.
    -- Blank planchet for above. Type 2. 1 piece.
    Pollock-5365b. 70/30 copper/nickel on 60% copper core. No engraving in field. Reeded edge. 1 piece.
    Pollock-5365c. 70/30 copper/nickel on 60% copper core. No engraving in field. Plain edge. 1 piece.


    1965 Inco 25 Cent Test Pieces - Small Head
    Pollock-5380. 95/5 nickel/silicon on 2% "Permalloy" core. Reeded edge. 6 pieces.
    Pollock-5380. Sealed in original presentation poly holder. 2 pieces.
    -- Blank planchet. Proof Quality, manufactured by the Franklin Mint. 18 pieces.
    -- Blank planchet. Similar to the above, said to be annealed in oxygen rather than nitrogen. 6 pieces.


    Miscellaneous "Component Pieces"
    -- 75/25 copper/nickel outer clad layer. 2 pieces
    -- Pure copper inner core. 2 pieces.
    -- Bonded 2-piece set - copper/nickel layer and copper core. 1 piece.
    -- Blank planchet - copper/nickel layers over copper core. Type 1. 1 piece.
    -- Blank planchet - copper/nickel layers over copper core. Type 2. 1 piece.


    Auction Info

    Auction Dates
    January, 2015
    7th-12th Wednesday-Monday
    Bids + Registered Phone Bidders: 20
    Lot Tracking Activity: N/A
    Page Views: 1,120

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