Wm. R. Dyer & Co.'s Western and mercantile directory for 1862. : Principal office, No. 607 Sansom Street, Philadelphia. The design of the United States military and mercantile directory, is to call the attention of sutlers, army officers, and the trade in general, to the advertising patrons of this enterprise, ... Advertisements inserted at the following rates, viz.: Per page, $20 00 ...