Worker using machinery, Albina Engine & Machine Works, Portland
Workers using machinery at B. P. John Furniture Corporation
Portrait of a unidentified couple sitting outside with a spinning machine
Steamship Mormacsea crew
Steamship Mormacsea machine room
Worker at Monarch Forge and Machine Works, Portland
Station B
Station B
Station C
Station C
Station C
Station C, engine driven generator
Station E, interior construction
Cazadero Dam, main turbine unit
Station G, Cazadero power station
Cazadero Dam, unit #3
Man with electrical generator at Oak Grove Dam
Men building transmission tower
Men using hole digger
Man looking at machine units at River Mill Dam
Caterpillar machine working at the Cove Palisades State Park area
Station A
Station L
Station L, electrical units and pipes
Test report on reconstruction of rotary converts
Bull Run, Little Sandy Dam, generator and governor
Bull Run, Little Sandy Dam, powerhouse interior
Oak Grove project, setting up tacoma logging engine
