reserched

ive reserched over and over again need some help : i have a ihc ? old time loco 0-4-0 v&t and looked for it in differant files on the net and couldent find it anywhere was able to see all of that rr. locos from that time period. why would that model mfg. pick a model that maybe dosent exist? and which co. makes locos that are detailed out?im looking for a v&t line around 1800s wood burner.
roger