DENVER, Pa. – At the turn of the 20th century, a pocketful of nickels or quarters was all a patron needed for thrills and entertainment at a saloon, amusement arcade or gambling house. Remarkably, the price to operate the ingenious machines that once filled a room with music or paid out a jackpot has not changed, but finding fine examples of such machines is quite another matter. This explains why Morphy Auctions’ Coin-Op & Antique Advertising series is so popular with collectors. Morphy’s never fails to present a connoisseur’s selection of coin-ops and exquisite advertising signs that are rarely seen elsewhere. Their next specialty sale, November 4-6, will offer more than 1,500 choice lots over the three-day period.