#26 Type III on "Ladies Cover" with Poughkeepsie, NY postmark

Note the little smidgen of cut off text in the margin at the upper left. It's easy to tell the first four letters are "C, I, N, and C." The text is actually the very end of the engraver's imprint - "Toppan, Carpenter, Casilear & Co. Bank Note Engravers, Phila. New York, Boston & Cincinnati."