Wine tank cars would certainly not have been seen on branch lines in places like Kansas or Georgia. But there is abundant photographic evidence of them in the trains of the major transcontinental carriers that served California such as the Santa Fe, Union Pacific/C&NW, and Southern Pacific/Rock Island/T&NO/SSW, sometimes several of them at one time, en route to widely scattered destinations.
I wonder sometimes whether the "abundant photographic evidence" is more related to the oddity of a car than to quantity.
