10000 series - February 1947-June (?) 1951 - this is mostly 78's, most "early" 45's were issued much later. The true introduction of 45's is at the end of this series.
11000 series - June (?) 1951-June 1955 - 78 & 45 rpm records
12000 series - June 1955-April (?) 1961 - 78 & 45 records for the first half of the series, then mostly 45s, last 78 was 12738
13000 series - April (?) 1961-October (?) 1968 - 45's only
14000 series - October (?) 1968-1980 - 45's only
50100 series - Stereo 45s - 1958-1959
55000 series - Rhythm and Blues - 1955-1956 - 78's and 45's
| 78 only |
|
| 78 and 45 with different numbers | |
| 78 and 45 both using the same number |
|
| 45 only | |
| Purple is used to indicate is used to indicate transferred, cancelled and not issued records. |