SP 1931-1953
These units were renumbered in 1965 from SP 1403-1425.
1965 NUMBERS:
SP 1931-1953:
| 1965 road number | Orig. road number | notes |
| SP 1931 | SP 1403 | |
| SP 1932 | SP 1404 | |
| SP 1933 | SP 1405 | |
| SP 1934 | SP 1406 | |
| SP 1935 | SP 1407 | |
| SP 1936 | SP 1408 | |
| SP 1937 | SP 1409 | |
| SP 1938 | SP 1410 | |
| SP 1939 | SP 1411 | |
| SP 1940 | SP 1412 | |
| SP 1941 | SP 1413 | |
| SP 1942 | SP 1414 | |
| SP 1943 | SP 1415 | |
| SP 1944 | SP 1416 | |
| SP 1945 | SP 1417 | |
| SP 1946 | SP 1418 | |
| SP 1947 | SP 1419 | |
| SP 1948 | SP 1420 | |
| SP 1949 | SP 1421 | |
| SP 1950 | SP 1422 | |
| SP 1951 | SP 1423 | |
| SP 1952 | SP 1424 | |
| SP 1953 | SP 1425 |