Folks:
Just when I think the Internet is a vast cesspool of wasted effort, I run into something like this:
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Wow. FREIGHT CARS AND TERMINALS, and you can read it all. It covers just about everything related to freight movement on US rails ca. 1912. This isn't just great for period modelers. A large proportion of our steam-era infrastructure was in place by then, or followed standards laid down in that era. Even today, a large part of our railroad infrastructure and the majority of our railroad routes were already there before the Great War.
Best of all, this book doesn't just cover the physical plant...it shows you how to use it! I discovered it when I was looking up information on poling yards.
Read it, folks! Readitreaditreadit! It's great.
Cordially yours: Gerard P. President, a box of track and a gappy table.