The manner in which you have asked your question almost guarantees it can not be answered with any degree of accuracy. You do not provide anything beyond the gauge. You need to give the overall condition, choke, wood used in the stock, serial number, finish, accessories, box, papers, any engraving, etc.. You might be in the 100-1000 USD and up range depending on specifics.
the manuals are available on the Browning site in .pdf format
your browning auto-5 was made in 1947.
87 years old
Your belguim made browning auto-5 standard weight shotgun was made in 1962.
Your serial number indicates that your Browning standard weight 16 gauge auto-5 shotgun was made in Belgium in the year 1947.
50-300 usd
Your serial number indicates that your Browning standard weight auto-5 shotgun was made in the year 1952.
With the serial number that you provided,you have a browning auto-5 standard weight shotgun that was made by FN of belguim for browning in 1955.
50-550 usd
250 USD.with the serial number that you have provided,your Browning standard weight auto-5 shotgun in 16 gauge was made in Belgium for browning in the year 1954.
Your serial number indicates that you have a standard weight Browning auto-5 shotgun that was made in the year 1958.
The weight of your rifle is 7lb 6 oz.