Was looking for a decent set of plan views for an Alleghany 1601, and ran across some useful stuff you may like/need... The O'Timers probably have these but Newbies could use the info...
First this one Book of Railroad Buildings with elevations and floor plans. It has UMPTEEN thousand illustrations, enough to scratch build any building! FREE

Next, the American Car Builders Dictionary wealth of info for rolling stock! Tons of Photos and Diagrams!!

Next, the Northern Pacific Railroad Society Research TONS "O" STUFF
or The Pennsylvania Railroad Fan
For the obsessed! The Railroad signal dictionary. circa 1908 Free PDF tons of drawings on signals and how they work. Greeble addicts need this!
It has ALL the info.

Well, that will keep you busy for a few hours!
First this one Book of Railroad Buildings with elevations and floor plans. It has UMPTEEN thousand illustrations, enough to scratch build any building! FREE

Next, the American Car Builders Dictionary wealth of info for rolling stock! Tons of Photos and Diagrams!!

Next, the Northern Pacific Railroad Society Research TONS "O" STUFF
or The Pennsylvania Railroad Fan
For the obsessed! The Railroad signal dictionary. circa 1908 Free PDF tons of drawings on signals and how they work. Greeble addicts need this!
It has ALL the info.

Well, that will keep you busy for a few hours!