Data on replacements in maintained tracks, prepared by Bureau of Railway Economics.
Table tells partial story of tie renewals in 1939
Ry Age
Railway Age ; 108 , n 23
1940
3 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Table tells story of tie renewals during depression
Engineering Index Backfile | 1936
Engineering Index Backfile | 1941
Engineering Index Backfile | 1937
Engineering Index Backfile | 1938
Engineering Index Backfile | 1938