Rail defect manual,
Rail defect manual,
compiled by Sperry rail service for the use of railroads.
- Hoboken, N.J., Sperry products, inc., c1942.
- 1 p. l., 50 p. illus. 19 cm.
Loose-leaf.
Railroad rails.
TF258 / .S7 1942
Loose-leaf.
Railroad rails.
TF258 / .S7 1942