Tim,
ACF wasn’t the only builder of cars of this
type that were primarily used for chlorine
containers. ACF records document the company built
approximately 350 "Multi-Unit Tank Cars" from 1924
to 1958 comprised of 87 orders having lot numbers
assigned. Roughly half of the cars were built before
1940 with the largest pre-1940 order being 16 cars.
Ten of these cars were built “for stock” for
the U.S.A. Chief of Engineers. I don’t know the
disposition of these lot 2370 cars built in July
1941.
Six ACF builder photos of these cars are on the
Barriger Flickr web site with 3/4-views & “B”
end views of 3 of the earliest cars - lot 10, MALX
365; lot 188, VSX 204; lot 401, GWEX 4?? (angled
view hides car number).
List of ACF M-U tank cars by reporting marks to
include the quantity of cars, number of orders, and
range of build dates:
ACCX - 10 cars, 4 lots 1926-1935
ACF - 10 cars, 1 lot, built 1941 (U.S.A. Chief
of Engineers)
BAKX - 2 cars, 2 lots 1931-1932
BCX - 7 cars, 3 lots 1926-1931
CACX (or possibly PPGX) - 21 cars, 2 lots
1936-1937
CALX - 3 cars, 3 lots 1927-1934
CILX (Canada) - 2 cars, 2 lots 1932, 1945
DAX - 23 cars, 11 lots 1928-1946
DUPX - 15 cars, 3 lots 1926-1933
GCX - 26 cars, 1 lot, built 1948
GWEX - 8 cars, 2 lots 1927-1928
HOKX - 8 cars, 2 lots 1925-1926
MALX - 10 cars, 1 lot, built 1925
MONX - 7 cars, 3 lots 1932-1936
PSMX - 32 cars, 12 lots 1924-1948
SHPX - 101 cars, 16 lots 1937-1948 (lessees -
Westvaco, DuPont, Diamond Chemical, likely others)
SPX - 44 cars, 11 lots 1927-1948
TELX - 1 car, 1 lot, built 1930
TENX - 4 cars, 1 lot, built 1949 (for sulphur
dioxide containers)
VSX - 15 cars, 5 lots 1924-1929
WCX - 1 car, 1 lot, built 1930? (unsure about
this order)
Regards,
Ed Hawkins
