[CarlaLiVecchi]

I have a Parker 12 ga double barrel shotgun with damascus barrels.
It has a serial #3603
It has a mark on it that looks like PatNoV13 and underneath that it is marked 1866.
It has double hammers and 30" barrels
It has a mark on the bottom of the tang that looks like T.B.
In the receiver, it looks like it says F94 above the serial number of 3603
All parts have matching serial numbers
Embedded in the stock behind the hammers is what appears to be a shield.
We are trying to get a value on this gun and need some help? Pictures are attached.