Many 5 plank POWs were for coal - typically coal merchants, as I understand it. But were any of those 5 plank POWs that we see from the likes of Bachmann (the ones that make no mention on their sides of anything coal related) used for general merchandise? (One can easily imagine such traders.) Or was general merchandise always carried by company wagons, there being no motivation for general merchandise traders to own their own wagons? (This is a big 4 period question.)