'Melody' was the first flipper machine manufactured by Bally. The rolldown version of this game is Bally's 1947 'Melody Roll'.The playfield layout was used again on Bally's 1948 'Ballerina' but with a flipper-shaped stationary post in the center playfield in place of the triangular post.Per Cash Box Feb-21-1948 page 36, Bally announced that shipments began that week.