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. Auto 5's with poly-chokes, compensators and recoil pads (other than Mag 12's) will reduce value. Near mint guns and original box will command an extra premium. Recommend taking it to a gun shop for appraisal.
Impossible to answer without a detalied description of all markings and features.
Browning Citori 12 gage over and under & a Browning Goldtrigger Light Twelve: How much are they worth?
50-1000 usd
05-500 usd
I would need to know the Browning model to be of any help to you.
50-650 usd
50-500 uSD
50-500 usd
300 or so
Browning did not make an Invector model. That is the type choke system of the shotgun.
Not enough info. Provide model, condition, specs
300 or so