about $200 max
$200 to $800, depending on exact model and condition
$1000- $2000 depending on model and barrel length
You have a third model Winchester model of 1876.This rifle will range in price from 1,500 dollars for a rifle with 10%of its original finish to as high as 7,500 dollars for a rifle exhibiting 60% of its original finish.
about $200 if very clean
You need to seek a professional appraisal
$200 to $500 depending on condition.
The Stevens "Springfield" Model 83 was manufactured from 1935 to 1939. Value is between $40 to $75.
Minimal value 40-100 USD or so
depending on overall condition these rifle are valued at between 500-800 dollars.