The Beretta Model S55 was made in 12 and 20 gauge with 26", 28", or 30" barrels with various chokes, a single selective trigger, extractors and a checkered walnut stock. The Blue Book values are:
Add 10% for 20 ga.
The Model 61 Winchester slide action shotgun was made from 1932 to 1963. It was made in 22 short, long and long rifle, WRF or 22 Magnum. It has a 24" barrel, tube magazine, open sights and a plain walnut stock. The Blue Book values are:
Add up to 150% for single cal. barrel marking (S or LR, Short is very rare).
Add $400 for pre-war mfg. w/small forearm.
Add 20% for grooved receiver.
Add 20% for pre-WWII rust blue metal finish.
Add 20% to all Blue Book values for retail prices.
I need the model number of the Browning to give you the value.
The best way to sell your gun is to list it on AuctionArms.com or Gunbroker.com. On both sites you have complete control of the auction. You set the starting price, bid increments, reserve price if you want one, amount charged for shipping, type of payment accepted, etc. You can include up to 10 pictures with each auction. The buyer supplies you with an FFL of the dealer they want it shipped to and must go through a background check when they pick it up. The commission rate is around 1% which is extremely low. You receive payment before you ship the gun and the best part is no one comes to your house to look at it. I have very good luck using AuctionArms to sell guns and parts and have never had a problem with them.
I hope this helps you,