Gramaphone records were produced in a variety of speeds ranging from 60 to 130 rpm. 78 rpm was chosen for the phonograph industry, apparently this just happened to be the speed created by one of the early machines and, for no other reason continued to be used till after World War II. When two new competing formats came onto the market 33 and 45s, and gradually replaced the standard "78". Rare 78s continue to be produced for Jukebox collectors. His Masters Voice by Domino-jordan on DeviantArt.