Great Northern Engineering Drawing: Power House at Interbay, Washington, prepared in 1929. Burlington Northern File Number 8727-10, Reference Number 10102, Sheet 004.

Great Northern Engineering Drawing: Power House at Interbay, Washington, prepared in 1929. Burlington Northern File Number 8727-11, Reference Number 10102, Sheet 005.

Great Northern Engineering Drawing: Power House at Interbay, Washington, prepared in 1929. Burlington Northern File Number 8727-12, Reference Number 10102, Sheet 006.

Great Northern Engineering Drawing: Power House Oil Furnace at Interbay, Washington, prepared in 1928. Burlington Northern File Number 8727, Reference Number 10110.

Great Northern Engineering Drawing: Power House Oil Furnace at Interbay, Washington, prepared in 1928. Burlington Northern File Number 8727, Reference Number 10111.

Great Northern Engineering Drawing: Power House Oil Furnace at Interbay, Washington, prepared in 1928. Burlington Northern File Number 8727, Reference Number 10111.

Great Northern Engineering Drawing: Power House Oil Furnace at Interbay, Washington, prepared in 1928. Burlington Northern File Number 8727, Reference Number 10111.

Great Northern Engineering Drawing: Power House Oil Furnace at Interbay, Washington, prepared in 1928. Burlington Northern File Number 8727, Reference Number 10111.

Great Northern Engineering Drawing: Old South Yard Office 16 Foot X 20 Foot Addition at Interbay, Washington, prepared in 1969. Burlington Northern File Number 9642, Reference Number 10105, Sheet 003.

Great Northern Engineering Drawing: Old South Yard Office 16 Foot X 20 Foot Addition at Interbay, Washington, prepared in 1969. Burlington Northern File Number 9642, Reference Number 10105, Sheet 004.