A vague question that is hard to answer. Does it have the original box, manual and other papers? What is the barrel length? Is it a side by side, over/under, pump or semi auto? What is the choke on the barrel(s)? Any engraving? What condition is the wood in? The bluing? You can date it yourself by going to http://www.browning.com/customerservice/dategun/index.asp
automatic 4 shot serial number is 1kg182.
your browning 16ga auto-5 shotgun was made in 1949.
Your browning auto-5 12ga lightweight shotgun was made by FN for browning in 1967.
It was made in 1930
50-500 usd
Your question is about the Browning auto-5 shotgun.The age of your Browning cannot be determined without you providing a serial number for your Browning.
Requires professional appraisal.
100-1000 usd
With the serial number that you provided,your Browning auto-5 shotgun was made in the year 1946.
The 4V prefix to your serial number indicates that you have a Browning auto-5 Magnum shotgun made by FN of belguim,in the year 1964.
50-550 usd
0-500 uSD