Bumper Badge Bonanza
A century of AA insignia

On early versions – those with fewer than five digits – bore the serial number on the shank of the badge. Once the number of badges rose above 10,000, the serial number was impressed around the top of the circle, while later designs also bore the name of the first secretary of the AA, Stenson Cooke.
In addition to his name, the front soon bore the word 'secretary', while the reverse included the telephone number and telegraphic address, the Edwardian equivalent of an email address.
By November 1907, motorcyclists were being supplied with their own, smaller badges. During World War I these badges were given heart-shaped tokens indicating membership expiry dates.
Following the AA's amalgamation with the Motor Union, a combined badge appeared in 1911. This incorporated the 'M' and wings from the Motor Union with the intertwined 'AA' and became the standard pattern for the next half century. Only the size, type of metal and means of attachment to the car were to change. From about 1925, brass was no longer used at all and nickel or chrome finishes were the norm.
A pennant on top of the original circular badge between 1907 and 1967 indicated the owner was a member of the AA Committee.
The square badges with a yellow background replaced the round design in 1967. They carried no numbering or inscriptions.
Numbering System
The numbering system on the original badges was an issue number and did not relate to membership numbers. The serial number gives an indication of when it was produced as follows:
- 1 to 999,999 – 1906-30
- A-P suffixes – 1930-45
- RST suffixes – 1946-56 (Flat motorcycle badges)
- WXYZA suffixes – 1956-67 (Domed motorcycle badges)
- OA to OZ prefixes – 1945-57
- 1A-9A prefix – 1957-59
- 1B-9B prefix – 1960-61
- 1C-9C prefix – 1962-63
- 1D-9D prefix – 1964-65
- 1E-9E prefix – 1966-67
For more information about AA membership badges and the AA's history, refer to 'The AA History, Badges and Memorabilia' by former AA archivist Michael Passmore. It is available from Shire Publications, priced £4.50.
The AA's memorabilia collection is housed at the Milestones Museum in Basingstoke.
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