Bell, J. Snowden.
Pennsylvania. Ca. 1963.
TWO BOOKLETS. Mallet Articulated Locomotives: black and white illustrations throughout, 35 pages, 6 x 9 inches, pictorial wrappers, staples slightly rusted; very good condition overall. Development of the Eight Driving Wheel Locomotive: 32 pages, 6 x 9 inches, pictorial wrappers, light soiling to cover, interior clean; very good condition overall. Reprints of 1910 Record 68 and 1917 Record 89 (with additional pages and illustrations added to latter). Item #38908