M-53 and subclasses had the Duryea underframes.
M-15K used the original underframe from the cars they were rebult
from. In 1955 and 1956, they were again rebuilt with new underframes
(or at least new center sills) and reclassed to M-15N, NA, and P.
--- In STMFC@yahoogroups.com, "Jeff English" <englij@...> wrote:
While these two cars look very similar, and still completelyDuryea
underframes. They were rebuilds of pre-WWOne cars, so theirdifferent
from the M-53. The most visible difference was the appearance ofthe
side sills.be a B&O
both card iswagontop box (maybe with the Duryea underframe) and the SAL B7
to whenin my hands, so it's just a matter of time to devote to design as
Feb/earlythese will be available. The B&O car will be available in late
include bothMarch; the SAL car in late April/early May. The B&O car will
revenuedoor styles (Creco and Youngstown) to cover the majority of the