What is your question?
IIRC, you can request a manual from Browning at Browning.com
Browning Pump Shotgun "BPS"
A Browning Auto 5 Lightweight shotgun was made in 1957 with that serial number on it.
The letters MW in the serial number of your browning stand for the year of manufacture which was 2004.
50-500 usd
50-350 usd
Without a detailed description, you will have to go to Browning.com and look it up.
0-500 USD depending on conditon.
Browning.com has sn data under customer service.
Which model? An auto-5 with that number was made in 1926.
Provide a DETAILED description of ALL markings on the weapon.