This is an automatic summary, original reduced by 71%.
> Researcher Roger W. Burdette has reported the only intact 1942 glass experimental piece.
> Made by the Blue Ridge Glass Company it has been certified by the Professional Coin Grading Service, graded PR-64.
> The experiments were publicized in trade magazines and officials at Blue Ridge Glass Company in Kingsport, Tenn., asked to participate.
> The Mint had a pair of used dies sent from Colt Manufacturing Co., one of the plastics experimenters, and Blue Ridge obtained tempered glass "Blanks" from Corning Glass Co. Blue Ridge had considerable difficulty in making glass 1942 sample coins.
> Blue Ridge described their process and results in a six-page report, which has been preserved among U.S. Mint documents in the National Archives.
> Surfaces have irregular glass flow patterns as well as micro cracks and crazing of the surfaces as described by the Blue Ridge report of Dec. 8, 1942.
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