GEC loci 3533 shunts its train on the tail track at the AMAX Henderson Mill, near Ute Pass, Colorado, in February 1982 as ASEA locis 3524 and 3509 look on. The four locos supplied by GEC Traction, 3533 to 3536, are believed to be the very last locomotives constructed at the famous Vulcan Foundry at Newton-le-Willows in England, works numbers 5590 to 5593.