"Julius Bien & Co." . . . . . . . . "Topographical map showing defenses of Cincinnati, Covington, and Newport"@en . . . . . . "Topographic maps"@en . . . . . . . . . . . . . . "Maps"@en . "Topographical map showing defenses of Cincinnati, Covington and Newport"@en . "History"@en . . . . "Cincinnati Region (Ohio)" . . "Bowling Green Region (Ky.)" . . "Newport Region (Ky.)" . . "Covington Region (Ky.)" . .