... All I know is that I have a 6 point star 16 hole Chromonika III in good working condition and I'm not letting that puppy go. I know Allan Holmes has one and someone else I met had one. I'm not sure if all 16's are like mine so I'll post what's on it as far as date stamps that most refer to Grand Prix. There's 1926, 1927, 1937 and what appears to be 1803, but it may be a bad 9 stamp as there is a slight line under the bottom of the round part of the number, which may be a 9. Kind of like a hangin' chad.