This type was first issued in 1964, starting at QQ-A100 (or QQ-A101 ?).
It was one of the FIRST New Jersey types to use the full state name "NEW JERSEY".
1964 BASEQQ-A100 - QQ-K999
Historic plates on the 1964 base used the "NEW JERSEY" state name die with the wide "W".
Low-number "courtesy" plates were also issued as historic plates. There were three patterns: QQ-A 00, 00 QQ-A, and QQ 00 A.
Numbers issued were like standard courtesy plates: 1-20.
1977 BASEQQ-L100 - QQ-P999
Historic plates on the 1977 base used the "NEW JERSEY" state name die with the narrow "W".
Low-number "courtesy" QQ plates were still available.
1979 BASEQQ-Q100 - QQ-Z999
100A-QQ - 999U-QQ
Interesting fact - historic plates are the only ones on which "Q" is used as a serial letter.
The blue plates apparently started at number QQ-Q100.
After QQ-Z999, a new series started at 100A-QQ in late 1983 or early 1984.
Historic low-number plates still in use with all three numbering patterns, but the number range was expanded up to 99.