Great Northern electric locomotive 5011, Class Y1a in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5011, Class Y1A in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5011, Class Y1a in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5011, Class Y1a in Washington State, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5012, Class Y1 in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5013, Class Y1 in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5014, Class Y1 in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5014, Class Y1 in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5014, Class Y1 in Skykomish, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5016, Class Y1 in Skykomish, Washington, undated. Photograph by Wade Stevenson.