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Laboratory of Minnie Mueller Tolke, manufacturing chemist. Chemical, dermatological and pharmaceutical preparations. Cincinatti, O.

[Collection of billheads of pharmaceutical firms and related businesses, United States and United Kingdom, 1850-1879]

[Collection of billheads of pharmaceutical firms and related businesses, United States, 1882-1902]

[Collection of letterheads, stationery, and form letters of pharmaceutical firms and related businesses, United States and Canada]

[Collection of billheads of pharmaceutical firms and related businesses, United States and United Kingdom, 1883-1905]