Go to Browning.com. Under customer service you can find a manual to view/download.
Ask a gunsmith for help or request/downlaod a manual from Browning's site.
Best left to a trained gunsmith
It will be marked "Made in Belgium"
Which guage is it? According to The Browning date guide your A-5 was made in 1924. This can be confirmed by visiting: http://proofhouse.com/browning/index.html
50-250 usd
No
Your browning auto-5 wa made by FN of belguim for browning in 1931.
your browning auto-5 was made in 1927.
your browning auto-5 was made in 1925.
Your browning auto-5 magnum shotgun was made by FN of belguim for browning in 1965.
With the serial number that you provided,your browning auto-5 shotgun was made by FN of belguim for browning in 1907.
They refer to this handgun as the browning model BDA (browning double action auto) pistol.