The Deerslayer (not a Deluxe and without a Roman numeral suffix), in perfect 100% condition, has a book value of $300.
I'm not familiar with the "red buck" terminology. Is that a Deerslayer model? If so, a 12 gauge in good condition will probably be worth $350 - $450.
The Featherlight Deerslayer 12 gauge is a hunting rifle made by the Ithaca Gun Company. These guns are very modern and are worth around 1,000 dollars.
model 620-a
Around 1500.00
1200 vented rib 12 gauge
$150.00
1200
about £120
Do a google search for "Winchester Model 12".
what is the value of 12 gauge skb double barrel ithaca 1900 model
100-1000 USD
About 150-200