Northern Pacific Engineering Drawing: Shop Plan - Ventilation Apparatus, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025498
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Ventilation Apparatus, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025503
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Underfeed Stoker, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025516
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Truss/Girt, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025488
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Truss Detail, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025493
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Structural Steel, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025499
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Structural Steel, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025500
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Structural Steel, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025502
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Steel Detail, Bridge 23, West of Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB027901
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Steam Piping, Mullan Tunnel, Blossburg, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB025512
• Item
• undated

Part of Timothy Miller Collection