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Genre Business correspondence Remove constraint Genre: Business correspondence Format Image Remove constraint Format: Image Subject Chemists Remove constraint Subject: Chemists

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    • 1973-Jun-10

    Semipostal stamps commemorating the 150th anniversary of the birth of Louis Pasteur. Includes two postmarks depicting Pasteur, with Pasteur also featured on the first day of issue cancel. A semipostal stamp is a postage…

    • 1962-Apr-05

    Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, concerning assistance to Japan and European nations to attend a Gordon Research Conference on the topic of non-empirical calculations.