Mr. Bill, meet Mr. Rader.
GaryB
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From: "F Ronald Rader" <f.ronald.rader@gmail.com>
Sent: Monday, August 31, 2009 2:27 AM
To: "Healey List" <healeys@autox.team.net>
Subject: [Healeys] CA lisc plates sequence numbering - the data
> California lisc Plates the real scoop:
> Here's some info that has been sent to me
>
> 1951 (1951-1955), BLACK PLATES WITH FAT YELLOW NUMBERS 1A23456
> 1956 (1956-1963), YELLOW PLATES WITH BLACK NUMBERS: AAA 123
> 1963 (1963-1968). BLACK PLATES WITH YELLOW NUMBERS: AAA 123
>
> At the end of 1950 there were approximately 4 million cars on the
> roads in California that had to be replated in January of 1951.(NEW
> PLATES WERE ISSUED YEARLY) To meet that requirement meant that 20
> percent of all possible combinations were issued in early 1951. The
> 1951 California base plates are designed with a number, letter, and up
> to 5 numbers (e.g. 1A23456). But the numbering on these plates was
> not issued in sequential order, i.e. they did not start at 1A and
> progress to 8x by 1955. Many of the "high" numbers were issued early
> (1951 and 1952). And there is a regional issue as well as some kind of
> pattern that isn't just a straight numeric issue. In fact, there are
> lots of 9-prefix plates, but all the 7-digit 9's have letters A, B, or
> N. So knowing what was issued in a given year, say 1954, is
> complicated.
>
> Anyway, the letters A through L were assigned to Northern California
> and M through Z to the 10 counties that comprise Southern California.
> The letter Z is associated with San Diego County.
>
> 1. For the 1951 base, the annual starting number sequences are not
> well known. Apparently they have been hard to isolate so far. The
> plate guys are also working on the problem using known data from
> original cars/plates/owners. When/if I hear more, I'll let you know.
>
> 2. 1956 base.
> 1956 AAA to Mxx were used during the first year.
> 1957 to 1962 the annual starting alphas are not well known.
> Different colored tags were issued each year and affixed to the
> plates.
>
> 3. 1963 base.
> These plates are quite well known.
> 1963 AAA to Mxx were used during the first year.
> 1964 M, N, O, P, Q, R (lots of overlap in 1964-65) plus a "year"
> decal, i.e. 1964
> 1965 N, O, P, Q, R (lots of overlap in 1964-65)
> 1966 R, S, T
> 1967 T, U, V
> 1968 V, W, X
> 1969 Y, Z
>
> that is all i know.
> ron
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