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
