Help with a Bonanza Million Dice R-2 Machine

[BilliardsEtc]

I recently purchased a Bonanza Million Dice R-2 Machine in perfect working order with topper display and owners manual. I have not been able to find out much about this machine so I'm hoping someone on here can give me an idea of it's value and back story on these machines as this is the first I've seen or heard of. It has 2 different Mfg dates and Manufacturers (Sircoma Nov 1979 and IGT Dec 1982)

Thanks for your Help
Bob