This card game, not dissimilar from gin rummy, includes 56 cards: 48 cards bear the call signs of real radio stations throughout the USA, as well as some international stations; there are also four S.O.S. cards and four "Listening In" cards, which have special rules. The winner is the first to score 500 points. The game was copyrighted 1923, but had already been relegated to a list of budget (30 cent) party or family games in the 1925, 1927, and 1928 Parker Brothers catalogs. It does not appear again following the 1928 catalog. Note: national radio broadcasts were new and trendy in the early 1920s, inspiring many games with similar titles. This is NOT the same game as Game of Radio (1924), Milton Bradley's Radio Game (1925), or All-Fair's Toon-in Radio Game (1925) or Radio Game for Little Folks (1926), all of which are separate and distinct products.