Hello,
I have had this for years - I think it came from an early Guns Review.
I put it on here quite a fews back . I'm not too sure how accurate it is.
No Ser No's just the Prefixes - It may help :
BSA Airsporter Chronology
BSA MKI Airsporter ~ 0.22 Calibre
G prefix - 32,000 made ~ December 1948 - December 1954
GA prefix - 4,000 made ~ Mid 1955 - Mid 1956
GB prefix - 13,000 made ~ Early 1956 - December 1958
GC prefix - 3,000 made ~ December 1958 - September 1959
BSA CLUB ~ 0.177 Calibre
E prefix - 2800 made ~ Late 1948 – December 1950
EA prefix - 7500 made ~ December 1950 October 1954
EB prefix - 3000 made ~ Late 1955 – October 1957
EC prefix - very few ~ March 1956 - May 1956
ED prefix - under 200 ( Club MKII ) ~ March 1959 - December 1959
BSA MKII Airsporter
September 1959 – MKII Introduced
EE prefix - 7,000 made ~ September 1959 – December 1965
GD prefix - 31,000 made
EF prefix - 2,300 made ~ December 1965 - Mid 1967
GE prefix - 6,400 made
EG prefix - 100 made ~ Mid June 1967 – June 1968
GF prefix - 2,800 made
GG prefix - 1,200 made ~ Mid June 1968 – Mid 1969
EK prefix - 4,000 made
June 1969 – MKIV introduced
June 1971 – MKV Introduced
EL and GJ prefix
Prefix Letters “EH”, “EI”, “EJ”, & “GH” not used
Regards,
Sam