A photo is also helpful in identification. Someone there may have information about your set. For help in valuing your radio, try posting an inquiry in the Antique Radio Forums . There is no single dollar price that can be placed on any radio. Radio prices vary according to where they are being sold, a radio at a yard sale would be expected to sell for less than a radio sold in an antique store, for example.
Dates listed are the year a particular model was first introduced.
Some radio models were manufactured for several years. Determining exact manufacturing dates for items a half-century old is not an exact science, for the most part dates should be accurate to within a year. There are several books availble to help identify and value radios. Machine Age to Jet Age, Radiomanias Guide to Tabletop Radios by Mark Stein. Currently 3 volumes, this collection of books pictures and values several thousand radios.