SP 507727, 33 cars in this line entry in October 1980.

IL 48' 6"
IW 10' 6"
IH 8' 6"
OL 56' 7"
OW 10'
EXT W 10' 6"
HEIGHT FROM RAIL TO:
EXT W 3' 9"
EAVES OR TOP OF SIDES OR PLATFORM 3' 9"
EXT H 12' 3"