246820
Arnold Beckman
Autographed Philatelic Ephemera
200229
http://www.jgautographs.com/product/details/autographed-philatelic-ephemera/arnold-beckman/246820
$59.00 - Product is currently out of stock.
Authentic, autographed, vintage First Day Cover signed by American chemist and inventor of the pH meter, Arnold Beckman.
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JG Autographs
http://www.jgautographs.com
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