Finally, the 360 deluxe model group, numbers 360 to 375. These instruments have hollow bodies with rounded top edges and binding on the back edges, stereo "Rick-O-Sound" output in addition to standard mono output, and large triangular fretboard inlays made from crushed pearl. There are two body styles for these models: the earlier or "old style" which was produced from its introduction to approximately 1964, and the new style, with rounded top edges. The original style shared the body style of the 330, with sharp edges and cutaways, distinguishable only by the front, back and neck binding and triangle inlays. For examples of the different styles, one could see George Harrison of The Beatles, who used an old style 360/12 (which was actually the second of three prototypes) in the movie and on the album "A Hard Day's Night", while Roger McGuinn of The Byrds used a new style 360/12 with a factory-added third pickup and onboard compressor.