Impossible to answer. No detailed description given or even the serial number.
Can't be answered without a DETAILED DESCRIPTION OF ALL MARKINGS and what it is (rifle, handgun, shotgun)
Impossible to answer without a detailed description of all features, markings and condition.
Most FN production records from WW 2 and earlier were lost during the war.
Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal.
There is no way of answering this question without a serial number included in your question.
You will have to call FN and provide the serial number.
Impossible to answer without a detailed description and the serial number.
50-450 usd
Not a valid Browning serial number.
Made in 1926
Impossible to tell from just the serial number.