![](http://www.alamy.com/thumbs/6/3892AF12-E019-4C56-A1A3-B5CA4159DA75/2CH72W9.jpg)
. Report on the substitution of metal for wood in railroad ties . HALF PLAN. CROSS SECTION . I Beam,3 13 filon(j, 3-2ir\(idle, BoHom Plaie,8Zfi. long, 9-6 *.,0-3a COBLYN TIL. 0- 3
Size: 2226px × 1122px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorfernowbe, bookcentury1800, bookdecade1890, bookyear1890