1977 BASE1A-A1 - 9E-S9 (?)
A1-1A - N9-9H (?)
|These started on the 1977 base with number 1A*A1.
|It appears that they went up to around 9E*S9 and then the series changed and restarted at A1*1A.
These plates were still being issued up until 1992 when the graphic base started - N1*4H is the highest known.
There were no firefighter plates issued on the blue base - except for samples.
1992 BASEN1-1J (?) - V9-9B (?)
Embossing slightly high/right
1992Odd A0-A0 format
Use of 'Q' on a standard plate !
V9-1B is the highest known on this base.
There were also remakes of earlier numbers.
AVERY BASEV1-1C (?) - Z?-??
3M2 BASEZ?-?? - Z9-9Z
1E-T1 (?) -
In 2008 Z9*9Z was reached, and the numbering continued where it left off with the original 1977 series - somewhere around 1E*T1.
HELIX BASE ?G-?? - 9J-J9(?)
FLAT BASE1J-K1(?) -
Sequential Firefighter plates on the flat base first appeared in October 2015.