This is the first pinball machine from this manufacturer to use a score reel for the thousands digit to allow for higher scoring. Previous games used a silkscreened '1' in this position. This is the Italian add-a-ball model of Gottlieb's 1967 'Diamond Jack' U.S. Model. The replay version is Gottlieb's 1967 'King of Diamonds'. It was very common in Italy for the operators to modify their machines to have the longer 3" flippers. Also, the pop bumpers were often replaced with newer versions from the 1970's.