Thanks to DVD technology, it is now possible to "freeze" frames on an old movie. From 1934 to 1960, a United States Treasury Department regulation did not allow real money to be shown in films or books as the Department considered this to be "counterfeiting." There was an exception in the law for books and catalogs, if the pictures were for "numismatic purposes." Films made during that period usually used studio property imitation coins or "prop" coins. These were designed to look somewhat like real coins but were frequent larger to show better. Real rare or ancient coins were not usually used as they were expensive and could be lost or misplaced on film sets. It is only a coincidence that actor Walter Huston appeared in several of these films.