--- In STMFC@..., "al_brown03" <abrown@f...> wrote:
I don't think these date from the steam era, but Sandersville,
Southern, and Seaboard Coast Line had roof-hatch boxcars for kaolin
In the steam era, I think the D&H converted some USRA single sheathed
boxcars for bulk cement service; I believe Tichy offers a model of
this car. In addition, Canadian Pacific had a fleet of USRA boxcar
clones with a bottom-dump feature for grain service. The D&H car,
IIRC, had roof hatches.