Railroad Times Tables.

Autor: LAYNG, J. D., O'BRIEN, W. L., FELTON JR., S. M., BYERS, JOHN M., SCOTT, JOHN F., ROSE, WM. J., HYNDMAN, E. K., HOUGH, SAM'L. C., LAWRENCE, J. J., KING, THOS. M.
Zdroj: American Manufacturer & Iron World; 01/21/1875, Vol. 10 Issue 12, p7-7, 1/5p
Databáze: Supplemental Index