|The 1979 base started at CG-W100.
In 1980 or 1981, CG-Z999 was reached, and the series continued from CG-100A. By this time, 2 to 3 letter prefixes were used up each year.
Around 1990, after CG-999Z was reached, a new series started at A100-CG.
1992 BASECG10000 - CG2????
E-100CG (?) - K999-CG
In 1992, the graphic base was introduced with 7 digits, starting at CG10000.
Like MG plates, some of these were stickered.
I have listed them in numerical order (of issue) as the stickers are somewhat inconsistent.
1992 BASEFrank Kan
The 7-digit series stopped in the low 20000 series - CG21390 (pictured above) is the highest known.
In 2001, the previous (6-digit) series numbering returned. This series started where the blue plates left off - somewhere between C100-CG and E100-CG.
AVERY BASEL100-CG - P999-CG
N534-CG is a typical Avery base plate where the paint has come off.
3M2 BASER100-CG - Z999-CG
CG-1AAA - CG-9AXZ(?)
3M-2 plates started at R100-CG. Some of these were still issued with stickers.
2009 STICKERED 2011
In 2012, after Z999-CG, a new series started at CG-1AAA.
FLAT BASECG-1AYA(?) -