All between 1986 and about 1992 or so. I was in Dick's shop when they were working on tooling for the AAR car, looking for a source of toolmaking services for what was to become the Accurail line.
The IMWX kit came out a couple years after Intermountain, tooled by Intermountain for one of the original partners.
Not sure about Intermountain's own car, likely shortly after Front Range failed.
Sorry I can't ger any closer on the dates.
---In STMFC@..., <fgexbill@...> wrote :
Can someone here recall please the precise years that the following styrene kits were introduced to the market for sale:
The C&BT 40-foot steel car with a range of doors, roof, and ends to model the AAR boxcars built beginning in 1944.
The Innovative Model Works kit to model the Standard 1937 AAR 40-foot steel boxcar.
The InterMountain Modified 1937 AAR kit.
I will use this information in the 2018 clinic I am planning. Thank you.