Depends on the condition and if you have the original box.
Browning made the first sucessful semi auto shotgun over 100 years ago, along with semi auto rifles (BAR from WW 1) pistols (Browning Hi Power from 1935) and machine guns (.50 caliber Browning)
100-500 USD
50-125 or so
50-250 USd
That is '6.35mm' or .25 auto. Value depends on condition.
50-200 usd
Browning.com has sn data under customer service
Models include the 1910, 1922, 1910/22, BDA, and PRO to name a few.
300-525 USD
0-550 usd
100-1000 USD or more depending on specifics.
50-225 usd