Northern Pacific Engineering Drawing: Signal and Section Crew Building at Superior, Montana, prepared in 1969. Burlington Northern File Number 1283-2, Reference Number 10107, Sheet 002.

Northern Pacific Engineering Drawing: Side Warning Telltale at East Auburn, Washington, prepared in 1946. Burlington Northern File Number 5275, Reference Number 10101, Sheet 003.

Northern Pacific Engineering Drawing: Side Warning Telltale at East Auburn, Washington, prepared in 1945. Burlington Northern File Number 5275, Reference Number 10103, Sheet 004.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Yakima, Washington, prepared in 1958. Burlington Northern File Number 4975, Reference Number 10105, Sheet 002.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Yakima, Washington, prepared in 1958. Burlington Northern File Number 4975, Reference Number 10105, Sheet 001.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Missoula, Montana, prepared in 1962. Burlington Northern File Number 4818, Reference Number 10107, Sheet 003.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Missoula, Montana, prepared in 1962. Burlington Northern File Number 4818, Reference Number 10107, Sheet 004.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Missoula, Montana, prepared in 1962. Burlington Northern File Number 4818, Reference Number 10107, Sheet 004.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Missoula, Montana, prepared in 1962. Burlington Northern File Number 4818, Reference Number 10107, Sheet 002.

Northern Pacific Engineering Drawing: Sectionmen's Service Building at Missoula, Montana, prepared in 1962. Burlington Northern File Number 4818, Reference Number 10107, Sheet 001.