Great Northern Engineering Drawing: Yard Office Heating Plan at Interbay, Washington, prepared in 1959. Burlington Northern File Number 146, Reference Number 10105.

Great Northern Engineering Drawing: Yard Office Heating Plan at Interbay, Washington, prepared in 1959. Burlington Northern File Number 146, Reference Number 10105.

Great Northern Engineering Drawing: Yard Office Duct Layout at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-M1, Reference Number 10110, Sheet M-1.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-E1, Reference Number 10110, Sheet E-1.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-7, Reference Number 10110, Sheet A-7.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-2, Reference Number 10110, Sheet A-2.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-5, Reference Number 10110, Sheet A-5.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-1, Reference Number 10110, Sheet A-1.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721-4, Reference Number 10110, Sheet A-4.

Great Northern Engineering Drawing: Yard Office at Interbay, Washington, prepared in 1967. Burlington Northern File Number 9721, Reference Number 10110, Sheet 002.