It's a Stevens manufactured for Montgomery Wards. Model 5000 was introduced in 1926 and manufactured into the 1930's when it was re-designated Model 5100 and around 1940 became the Model 311.
$150
50-200
No
Proofhouse.com has a store brand chart that might help.
Not enough information
any one with information or pics on peerless 12 gauge double barrel hammerless with 272562
If it is side-by-side, probably Stevens.
1,295.00 is good condition!
Most likely Stevens they did make a model #5100
50-100 USD
100-10000 USD depending on EXACTLY what you have and its condition.
Stevens made for Sears Roebuck