Northern Pacific steam locomotive 3006. Number 3006 is a class Z built by Baldwin in 1907. Photo by Charles R. Iles, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 3005 at Upham, Washington, circa 1912. Number 3005 is a class Z built by Baldwin in 1907. Photo by AG Veorge, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 3005 in helper service at Lester, Washington, circa 192. Number 3005 is a class Z built by Baldwin in 1907. Photo by W.C. Casey, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 3005 in helper service at Lester, Washington, circa 192. Number 3005 is a class Z built by Baldwin in 1907. Photo by W.C. Casey, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 3005 in helper service at Lester, Washington, circa 192. Number 3005 is a class Z built by Baldwin in 1907. Photo by W.C. Casey, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 3004 at Lester, Washington, circa 1917. Number 3004 is a class Z built by Baldwin in 1907. J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 3000 on September 15 in 1916. Number 3000 is a class Z built by Baldwin in 1907. Photo by Charles R. Iles, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 3000 is posed for a company roster photo on September 13, 1916. Number 3000 is a class Z built by Baldwin in 1907. Photo by Charles R. Iles, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 30 at Tacoma, Washington, on September 04, 1946. Number 30, a class Y built by Schenectady in 1898, is parked near the blow-down shed near the roundhouse. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 3 at Schenectady, New York, in 1897. The builder's photo of Number 3, (later number 13), a class X, was built by Schenectady as a compound for helper service in 1897. Photo by Schenectady Loco. Works, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, builder's photo