Printed application blank issued by Parke, Davis & Co., Department of Experimental Medicine, Detroit, Michigan. Address side bears a circular cancellation reading Bolton, Mich., dated Apr 2, 1908, and a 1-cent green U.S. stamp. The form side is filled in pencil with brief entries including acreage (noted as 5 acres) and seed/inoculation requests. Card appears to be company ephemera used for requesting cultures/inoculants.

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