NS 1601-1617:
NS 1601-1605 - built 5-7/1951 - serial numbers 75237-75241:
| NS 1601 | NS 1602 | NS 1603 | NS 1604 | |
| NS 1605 |
NS 1606 - built 9/1952 - serial number 75699:
| NS 1606 |
NS 1607-1610 - built 9-10/1952 - serial numbers 75721-75724:
| NS 1607 | NS 1608 | NS 1609 | ||
| NS 1610 |
NS 1611-1613 - built 1/1954 - serial numbers 75938-75940:
| NS 1611 | NS 1612 | NS 1613 |
NS 1614-1615 - built 3/1955 - serial numbers 76037-76038:
| NS 1614 | ||||
| NS 1615 |
NS 1616 - built 12/1955 - serial number 76112:
| NS 1616 |
NS 1617 - built 12/1955 - serial number 76114:
| NS 1617 |