Caldwell's Map of the Oil Belt, on a Line from the Mouth of the Clarion River to Olean, New York, Including Parts of Clarion, Forest, Jefferson, Elk, Warren, & McKean Co's., PA., and a Part of Cattaraugus Co., N.Y.
Condit, Ohio: J.A. Caldwell & Co., 1878. Unbound.
Ink note regarding scale on left margin, tiny internal tear along top edge, splits beginning at intersections of folds at two points, otherwise surprisingly well-preserved.
118 1/8 x 31 5/16. An enormous color map (over nine feet wide) showing the presence of.....