Gun shop
Your Winchester model 59 in the stated mint condition will bring between 450-525 dollars on todays market.
Your winchester model 12 is valued at between 450-800 dollars depending on the amount of original finish remaining.
This is a .177 pellet rifle.
in good condition, anywhere from $450-$600.
I have seen the priced $450 - $525.
A Winchester model 20 shotgun in good condition(80%) original condition is valued at between 350-450 dollars.
Any good qualified gunsmith should be able to repair your winchester,as long as he could obtain the parts required to repair your firearm.
The price of your winchester,new in the box is 425-450 dollars.
You actually have a Winchester model 9422M.These will bring between 450-550 dollars for a rifle in the condition you describe.They are becoming quite collectable.
Between about $450-800 depending on condition and markings.
A Winchester model 70 rifle produced in 1968 will bring between 300-450 dollars depending on the overall condition of your rifle,and a good bore.
your Winchester model 1897 which was made in 1956,is selling for between 300-450 dollars depending on the amount of original finish remaining on the wood and metal.