Made in the United States, by the International Silver Co. for I'm assuming the Yellowstone Park Line(See photo of logo).
Northern Pacific Railway Company 13th Annual Report With Map June 30, 1909.
3-Northern Pacific Railway Company booklet Sched for Conductors/engineers 1943
Northern Pacific Railway Company Report 15th Annual Report WITH MAP 1910 1911
Northern Pacific Railway Company Examination Book 1912 Railroad Rules Manual
3-Northern Pacific Railway Company Agreement for Switchmen/engineers 1954/57
Annual Report - Northern Pacific Railway Company - 1958 (AR129)
