Great Northern Engineering Drawing: Boiler Room Addition Beam Mk 7-B1 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S7.

Great Northern Engineering Drawing: Boiler Room Addition Beam Mk5-B1 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S5.

Great Northern Engineering Drawing: Boiler Room Addition Beam Mk4-B1 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S4.

Great Northern Engineering Drawing: Boiler Room Addition Beam Mk3-B1 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S3.

Great Northern Engineering Drawing: Boiler Room Addition Columns Mk2-C123 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S2.

Great Northern Engineering Drawing: Boiler Room Addition at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-E3, Reference Number 10111.

Great Northern Engineering Drawing: Boiler Room Addition at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-1A, Reference Number 10105.

Great Northern Engineering Drawing: Boiler Room Addition at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755, Reference Number 10108, Sheet R-1.

Great Northern Engineering Drawing: Boiler Room Addition at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755, Reference Number 10108, Sheet J-1.

Great Northern Engineering Drawing: Boiler Room Addition Angles Mk22A1 at Havre, Montana, prepared in 1970. Burlington Northern File Number 9755-9795, Reference Number 10108, Sheet S22.