Allentown, Pa: National Railway Historical Society, 1966. Soft Cover. Spiral bound in silver stiff wrappers printed in black; 100 pps. with folding map at rear. Illustrated throughout with photographs. Very good, prev. own. name and address inside front cover.
Allentown, Pa: Lehigh Valley Chapter National Railway Hist. Soc. 1961. First. Soft Cover. Spiral bound in illustrated stiff wrappers. 116 pps. illustarted throughout with photos. Very good, portion of the rear cover and last few pages not inserted into the spiral but not torn.
Allentown, PA: National Railway Historical Societ, Inc., 1961. First edition. Spiral_bound. First edition. Spiral bount in bright yellow illustrated covers. 116 pp. Illustrated with black and white photographs. In near fine condition with some toning to edges.