You don't. That information is not available to the public. It MAY be available to police officers.
You cannot. There is not a national registration system for firearms. Hopefully, there never will be.
Find a competent gunsmith. Failing that, get the apppropirate owner's manual.
Any of the on line auction sites, gun shop, gun show, Shotgun News.
Follow the instructions in the owner's manual. If you don't have one, request one from the maker. If they don't have a web site or don't exist, find a gun smith.
If you found a firearm and did not know who the owner is, then you would be advised to call the police and have them pick it up; they can find the owner. It is best to call the police and have them pick up the gun. If you must move it (say, to make sure some child doesn't find it), use a napkin or a paper towel, place it in a plastic bag and take it to the police. It may have been used in a crime and you really do not want your prints on it.
Follow the instructions in the owner's manual. If you don't have one, find a local gun smith.
Follow the instructions in the owner's manual. If you don't have one, find a gun smith.
The owner's manual usually contains contact info: Or your friendly local Gun Store.
When the owner of a gun in Florida passes away, the gun should be transferred to a new owner through a legal process such as inheritance or sale, following all state and federal laws regarding firearms ownership and transfer. It is important to ensure that the new owner is legally allowed to possess the gun.
On line auctions, pawn shops, gun shows, gun shops, estate sales, garage sales, want ad, for sale ads.
Contact your local law enforcement. They can check to see if the serial number has been entered as a stolen item. IF there is a report, the officer will need to retain the gun to return it to the owner. They WILL need to have the gun in hand to do this, not over the phone.
On line auctinos, gun shops, gun shows, want ads, contact weatherby