The value will be mainly determined by engraving. Who did it? Is it factory or aftermarket? Was it special ordered? Any accessories come with it? What type of wood used in the stock? Value range could be 100-1000 USD or more.
$400-$500 in excellent condition.
500 USD
Does it have the original box, manual or any accessories? Is it a standard rifle or does it have any engraving? Serial number? All affect value. Price range from 500-1500
400 or so
Browning does not use those letters to designate engraving.
300-500 USD.
No way to answer without a detailed description of all markings, accessories, box, papers, finish, condition, engraving, etc..
belgium browning bar II safari edition 30-06
1903-1939. Value depends on condition. Your definition of excellent might not mean excellent in terms of collectable Browning shotguns. Broad range; a couple of hundred to a couple of thousand.
with these fine made Belgium shotguns,condition is everything in the value of your Browning Sweet Sixteen shotgun which was made in Belgium in the year 1957.They can be worth between 300-1,200 dollars if the original condition is quite prevalent and the bore is in excellent condition.
050-1000 usd
Impossible to answer without a detailed description and the serial number.