Northern Pacific diesel locomotive number 3612 in the engine facility at Auburn, Washington, circa 1967. NP 3612 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. The unit is coupled to sister NP 3628. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 3615 in the engine facility at Auburn, Washington, on June 14, 1967. NP 3615 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 3615 in the engine facility at Auburn, Washington, on June 14, 1967. NP 3615 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 3615 in the engine facility at Auburn, Washington, on June 14, 1967. NP 3615 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific Number 3616, an Electro-Motive Division (EMD) SD45,at Ellensburg, Washington, June 1967.

Northern Pacific EMD Number 3616,an Electro-Motive Division (EMD) SD45, at Ellensburg, Washington, June 1967.

Northern Pacific diesel locomotive number 3617 in the engine facility at Auburn, Washington, on June 08, 1970. NP 3617 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. The unit is coupled to ex-GN SDP 45 No. 9863. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 3618 in the yard at Auburn, Washington, in 1967. NP 3618 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. The unit is coupled to U25C NP 2805. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 3618 in the yard at Auburn, Washington, in 1967. NP 3618 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 3618 in the engine facility at Auburn, Washington, on June 1967. NP 3618 is a SD-45 built by Electro Motive Division of General Motors Company in 1967. The unit is coupled to ex-GN SDP 45 No. 9863. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive