Businessmen Henry Wells (1805–1878) and William Fargo (1818–1881) founded the American Express Company in 1850 and the Wells Fargo Company in 1851. By capitalizing on the burgeoning need for express and banking services, both men (and their companies) came to number among the greatest success stories in the commercial development of the American west—and, indeed, became still-familiar household words. Partially printed DS, one page both sides, 12 x 8.5, May 1, 1866. An handsomely engraved certificate for one share of capital stock in the American Express Company, issued to J. B. Penfield of Oswego, signed “Henry Wells” as President and “Wm. G. Fargo” as Secretary. In fine condition, with a few unobtrusive pinholes, ink stain at lower right (well away from signatures, and mostly in blank portion), and faint folds and ink cancellation stamps touching Wells and (very slightly) Fargo. LOA John Reznikoff/PSA/DNA and R&R COA.