I am looking for some help gathering info on a shotgun passed down to me from my grandfather. I have a Browning Sweet Sixteen serial # A3xx. It has the FN logo on the butt and a vented barrel. The barrel is stamped "BROWNING ARMS COMPANY ST. LOUIS Mo". An FN in a circle is stamped above the serial number under the reciever. The barrel is also stamped with "MADE IN BELGIUM" and also shows some PV as well as an EG in a cirlce under a crown. The gun still shoots very well and other than some minor rust on the butt looks great. Looking to help trace history/age of gun and an approx. value. Its priceless to me so not looking to sell just would like to know more about it. On a side note I have a Browning 12 gauge from my other grandpa with very similiar features serial # 4175xx. Any and all help would be much appreciated. Thanks in advance.