Great Northern Engineering Drawing: Credit Union and Trainmasters Office Plan and Heating Plan at Interbay, Washington, prepared in 1959. Burlington Northern File Number SK-2096, Reference Number 10104.

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 005.

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 001.

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 002.

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.

Great Northern Engineering Drawing: Rip Track Office Plan and Heating Plan at Interbay, Washington, prepared in 1959. Burlington Northern File Number SK-2097, Reference Number 10110.

Great Northern Engineering Drawing: Trainmaster and Terminal Managers Building Sections and Details at Interbay, Washington, prepared in 1968. Burlington Northern File Number 9721-10, Reference Number 10110.

Great Northern Engineering Drawing: Trainmasters and Terminal Managers Building at Interbay, Washington, prepared in 1968. Burlington Northern File Number 9721-E3, Reference Number 10109.

Great Northern Engineering Drawing: Trainmasters and Terminal Managers Building at Interbay, Washington, prepared in 1968. Burlington Northern File Number 9721-E4, Reference Number 10109.