The issue numbers are not necessarily continuous as some titles were not released, or otherwise skipped. Nevertheless, the Blue Amberol format was the longest-lived cylinder record series employed by the Edison Company. These were designed to be played on an Amberola, a type of Edison machine specially designed for celluloid records that did not play older wax cylinders.
Issue numbers are not always sequential because some titles were either not issued or skipped. The Blue Amberol format was the longest-lasting series of cylinder records used by Edison Company. These were created to be played on an Amberola machine, a special Edison device intended for celluloid records that could not play older wax cylinders.