Intermountain is the national distributor, but Centralia Car Shops is an outgrowth of, and remains a part of, Des Plaines Hobbies, a first rate hobby shop in a Chicago suburb.
http://www.desplaineshobbies.com/store/go/about-us/
From their website: "Des Plaines Hobbies is a old fashioned hobbyshop with an emphasis on Model Railroading. It was started 26 years ago when you could purchase a tube of glue and sticks of balsa wood. That is still true today, although we have added a few items. About 15 years ago we ventured into some light manufacturing and are also home to Centralia Car Shops, S Scale America, and O Scale America lines of kits, decals and parts.
intermountain
SP&S modeler, 1960's give or take a decade or two for some equipment.
http://www.youtube.com/user/SGTDUPREY?feature=guide
Gary DuPrey
N scale model railroader
If you Google Centralia Car Shops you will find a web site that says "Manufactured by Centralia Car Shops, Distributed by InterMountain Railway Co."
Who is the manufacturer for Centralia Car Shops models?
I need to contact them to ask a question. Thanks