Before I would answer your question.I would like you to check your serial number again.The G Prefix to the serial number for the Winchester model 70 started at number G941900 in the year 1969.Is it possable that you misread your serial number?Please recheck and post the serial number again.
With the serial number that you provided,your Winchester model 70 featherweight was produced in the year 1990.
Proofhouse.com has sn information.
your Winchester model 70 pre-64 featherweight was produced in 1961.
Your winchester model 70 featherweight,pre-64 rifle was made in 1956.
Proofhouse.com has Winchester sn tables. Proofhouse.com has Winchester sn tables.
The value of a Winchester model 12 Featherweight shotgun is dependent upon a number of factors. The most import being the condition of the shotgun.
Your serial number indicates that your Winchester model 12 shotgun was made in the year 1951.
Mid 80s or so
No answer can be provided,without a serial number for the shotgun in question.
With the serial number that you have provided,your Winchester model 70 bolt action rifle was made in the year 1990.
Blue Book of Gun Values is one place.
Your winchester model 9422 was made by winchester in 1991.