Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, undated. Burlington Northern File Number PQ-232, Reference Number 101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1945. Burlington Northern File Number PQ-213-B, Reference Number 10106, Sheet 002.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1945. Burlington Northern File Number PQ-213B, Reference Number 10106, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1945. Burlington Northern File Number PQ-213, Reference Number 10107, Sheet 003.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-211, Reference Number 10102, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-236, Reference Number 10101, Sheet D-6.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-237, Reference Number 10101, Sheet D-7.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-238, Reference Number 10105, Sheet D-8.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-239, Reference Number 10102, Sheet D-9.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1942. Burlington Northern File Number PQ-231, Reference Number 10112, Sheet D-1.