A yellow Union Pacific diesel locomotive numbered 1720 stands in a rail yard on a clear, sunny day with stacks of steel rails in the foreground.
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c. 1954 to 1970

A Union Pacific GP9 diesel locomotive, number 1720, is shown in a yard, displaying its classic yellow livery with red pinstripes and grey roof.

Date
c. 1954 to 1970Estimated from the photograph; no date was written on the print.
Vehicle
Diesel locomotive
Operator
Union Pacific
Equipment
EMD GP9
Fleet numbers
Union Pacific 1720
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