MEC 300-321:
MEC 300-304 - built 12/1965 - serial numbers 30938=30944:
| MEC 300 | MEC 301 | MEC 302 | MEC 303 | MEC 304 |
MEC 305-306 - built 7/1967 - serial numbers 33214=33216:
| MEC 305 | MEC 306 |
MEC 307-321 - built 11/1968 - serial numbers 34612=34656:
| MEC 307 | MEC 308 | MEC 309 | ||
| MEC 310 | MEC 311:2 | MEC 312:2 | MEC 313:2 | MEC 314:2 |
| MEC 315:2 | MEC 316:2 | MEC 317:2 | MEC 318 | MEC 319 |
| MEC 320 | MEC 321 |