The Prang Standard of Color (6 pages of text plus 7 color plates) dated 1898 discusses how this printer defines color, mixes color, and generallly works with color.
The collection consists of a variety of papers including business correspondence, fourteen copies of a weekly advertising newsletter sent to customers in the U.S., and Canada, correspondence and notices concerning the Centennial Celebration ...
The collection is comprised of correspondence (including telegrams), receipts, patent documents, and notes concerning Prang's investment and scientific interest in a gold separation process utilizing mining tailings.