BALTIMORE 19th CENTURY COMMERCIAL/ ADVERTISING COVERS. 19 covers/ stationery with commercial cc or advertising design, includes Cotton factory cc with #113, a "War on the Oil Trust" imprint on cover with Dry Goods merchant cc, "F.W. & R. King/ Engineers" embossed cameo, fancy "Barnum's Hotel" cc, oval «Stoneburner & Richards" oval merchants design with #114, "Ford's Eutaw Hotel" cc and hotel image on back side, etc., usual mixed condition, Fine group