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Friday 8 December 2017 at 01:32
Quoted from KingPinGames:It's a "sac rack," which is used for $1 games. Each person put one Golden Sac (Sacagawea dollar) in the slot. It is just to make it easier than having paper money on the glass. Also helps when there might have been too much alcohol involved and someone puts a $10 (or $100) d...
Source: http://pinside.com/pinball/forum/topic/total-nuclear-annihilation-cluball-welcome/page/13#post-4112592