At least $250 bucks...let me know if you want to sell it
Value is hard to judge, but you have a mid-50's Superposed Pigeon Grade with 2 sets of barrels and signed by Felix Funken. That alone starts you at about $2500, and can go up from there depending on the wood and condition, the style of forearms and vent ribs, etc. Looks like you have a 26 in Lightning forearm for hunting and a 30 inch (trap?) forearm for trap and skeet. Hard to tell, the long barrels might be a beaver tale forearm but it looks like a field forearm (not flat on the bottom like a trap gun).
I think $3000 is the right ballpark for your gun, but again, value is what somebody wants to spend. If it was your grand dad's gun, and it's signed by the most well known and historically important engraver in Browning's history, I might just hang on to it unless I really needed the cash or you wife hates guns.
Seriously, if you do want/need to sell it, give me a shout at Lonestarb52@hotmail.com