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RUDOLPH A. MARCUS - FIRST DAY COVER SIGNED - HFSID 267690

First Day Cover signed: "Rudy Marcus", 6½x3½. FDC honoring 50th Anniversary National Easter Seal Society For Crippled Children and Adults, 6-cent stamp affixed, postmarked Columbus, Ohio, November 20, 1969, FIRST DAY OF ISSUE.

Price: $70.00

Condition: Fine condition
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RUDOLPH MARCUS. First Day Cover signed: "Rudy Marcus", 6½x3½. FDC honoring 50th Anniversary National Easter Seal Society For Crippled Children and Adults, 6-cent stamp affixed, postmarked Columbus, Ohio, November 20, 1969, FIRST DAY OF ISSUE. Born in Canada in 1923, Marcus is a naturalized U.S. citizen. He claims to have switched from laboratory work to theoretical - mostly mathematical - chemistry because he kept breaking lab equipment. Marcus won the 1992 Nobel Prize for Chemistry for his work on the theory of electron-transfer reactions in chemical systems. The Marcus theory shed light on diverse and fundamental phenomena such as photosynthesis, cell metabolism, and simple corrosion. Pencil note (unknown hand) on verso (no show through). Slightly worn at edges. Fine condition.

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