NS 1501-1510:
NS 1501 - built 10/1947 - serial number 73487:
| NS 1501 |
NS 1502-1506 - built 2/1948 - serial numbers 73488-73492:
| NS 1502 | NS 1503 | NS 1504 | ||
| NS 1505 | NS 1506 |
NS 1507-1510 - built 3/1948 - serial numbers 73493-73496:
| NS 1507 | NS 1508 | NS 1509 | ||
| NS 1510 |