When was it made: GWA production by year

There’s been a widely cited table in the Blue Book of Gun Values for a long time.  This table here comes from a more recent research effort, and is more accurate

1954 GW 1 – GW5100
1955 GW5101 – GW11500
1956 11501 – 16000
1957 16001 – 18000
1958 18001 – GW19750
1959 GW19751 – GW20250
1960 GW20251 – GW20750
1961 GW20750 – GW21750
1963 GW21751 – GW22250