No such shotgun model number/
300 or less depending on condition
50-300 USD depending on condition
The Winchester model 20 was a youth .410 single shot gun manufactured between 1918-1924. Only about 24,000 were built. Your serial number is not from a Winchester model 20.
Depending on condition, up to 600 USD Depending on condition, up to 600 USD
Proofhouse.com has sn data
Your winchester model 1902 .22cal single shot is valued at between 60 dollars for a gun with 10% of its original finish remaining,up to 200 dollars for a gun with 80% of its original finish remaining and a good bore.
DeLends on the condition and if u are pawning it or auctioning it is worth more if it still fires
Your Winchester model 12 shotgun was made in 1958.
This gun is worth about 800.00
The Winchester model 70 Black Shadow is worth between about 600 dollars and about 800 dollars depending on the condition and exact model. This gun is a relatively newer model by Winchester.
Teddy Roosevelt's first gun was a Winchester, model 1876. He ordered it when he was 22 years old. No other gun was shot as much or was as reliable as the Winchester.