I hope someone can verify a distant memory of mine. I remember playing an older pinball machine back in the late 60's/early 70's at the Lake of The Ozarks that was the only kind I have ever seen that had a special feature: if you did something in particular, it would let the flippers move inward closer to each other for a limited time and block the ball from going down the "throat" of the machine and being lost. Several siblings played this game and remember that feature as well but none of us recall what the game was or the exact year. I've never seen one like that since and no one that I know who collects or repairs them has been able to recall this either. Anyone??