Made @1924. If your "excellent" is in line with what people who make a living buying/selling firearms the value range is @ 600 USD.
The value of a Browning 9mm 1945 serial number 693398a depends on its condition. This gun in excellent condition is valued between 600.00 and 800.00 as of 2014.
50-500 usd
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.
500 USD
100-400 USD
The 72S suffix to your serial number indicates that your Browning superposed shotgun was manufactured in the year 1972,by FN of Belguim for Browning.
Manufactured in 1981, its value won't exceed about $300 in excellent condition.
Check the serial number. Should be two letters in it, not one.
Impossible to answer without a detailed description and the serial number.
$800.00 to $900.00
You will have to call Browning with the sn.
You must call Browning with the serial number or visit their website.