Who made the Peerless 28 gauge single shot serial number 119311 and how much is it worth and how old is it?

Unfortunately we would need a lot more information for a good answer. The two main suspects would be Remington, who made a fine quality shotgun, and Crescent, who made a utility grade shotgun. BOTH used the Peerless name. You need to take this to a competent gunsmith for an evaluation. Sorry-