[Caterpillar Tractor Company]
Parts Catalog. D4 Tractor, 44 Inch Grade. Serial Numbers 6U1- UP.
Seller ID: 2390
Caterpillar Tractor Company. Revised April 1951 (pp. 164). Form 30266, for machine number 6U-3157. In stiff brown wraps (23 cm) Cover rubbed along the spine, a few spots; text and images Fine. A clean, tight copy.
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