Martin,
GGD offered horse cars for the Santa Fe, PRR and maybe a couple of other roads. Pecos River Brass offered one in Santa Fe colors. One end had full width doors which opened to allow buggies and wagons to be unloaded circus style. I think the PRR had some which looked like horse cars but were used by stage production companies. Some horse cars were built with windows which were later covered as the horses got nervous when a train went by.
John Mateyko in Lansing, ILL
