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James J. Bohning Philatelic Chemistry Collection, 1951-2003 (inclusive)

Held at: Science History Institute Archives [Contact Us]

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Michael A. Morgan Philatelic Chemistry Collection, 1994

Held at: Science History Institute Archives [Contact Us]

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Robert Van Egghen Perkin-Elmer Corporation Collection, 1950-2011 (inclusive)

Held at: Science History Institute Archives [Contact Us]