| Serial Number | Year |
| 1 - 3000 | 1934 to 1940 |
| 3000 - 5500 | 1940 to 1945 |
| 5500 - 8000 | 1945 to 1950 |
| 8000 - 12000 | 1950 to 1955 |
| 12000 - 16000 | 1955 to 1960 |
| 16000 - 19000 | 1960 to 1965 |
| 19000 - 22000 | 1965 to 1970 |
| 22000 - 24000 | 1970 to 1975 |
| 24000 - 26000 | 1975 to 1980 |