sure this is a problem for many newbies, such as myself [/LIS T] . Where can one find the information to place the correct style of rolling stock for an era modeled? The manufacturers and distributors I've seen thus far rarely inform as to when a particular car was used, though a few do. It was fairly easy for me to find a PDF concerning useage years for trucks, arch bar and the like, but so far I've had no luck concerning the same for cars. As an example, I intend to model some where between the 20s and very early 40s. There must be a source of information telling one when a particular style of car was made and used, a clearing house or data base, but I don't know where to find it. While I'm not intending to be absolutely precise, I do need a better standard than "it looks old". Is this the sort of thing one can find as a member of the NMRA? If not, then where? I'm sure I am not alone with this difficulty.