Advertising envelope of the Niagara Envelope Manufactory of Buffalo, N.Y. for the Pan-American Exposition, 1901. The enclosed card describes the styles/types available and declares that the Niagara Envelope Manufactory are the Stationery Licensee of the Pan-American Exposition Co.

Dated Mar 2, 12.30 pm '01 by the publicity slogan machine cancel of the Barry Machine Cancel Co. and addressed to Melrose, Fla. where it was backs tamped on Mar 4. This cancel is Die 1 with the N of New York under the F of Buffalo.