GM&O 721-733:
GM&O 721-727 - built 3/1971 - serial numbers 36079-36085:
| GM&O 721 | GM&O 722 | GM&O 723 | GM&O 724 | |
| GM&O 725 | GM&O 726 | GM&O 727 |
GM&O 728-729 - built 4/1971 - serial numbers 37451-37452:
| GM&O 728 | GM&O 729 |
GM&O 730-732 - built 4/1971 - serial numbers 36086-36088:
| GM&O 730 | GM&O 731 | GM&O 732 |
GM&O 733 - built 12/1971 - serial number 7388-1:
| GM&O 733 |