I picked one up a month or so ago from ebay untested. It's an Underwater, unfortunately a German one - those were fitted with a very primitive solid state sound generator instead of a chime unit. Finally got around to testing it today, everything checks out Flipper switch needs cleaning on the left, that's about it. Even the bulbs all work.

That's the exact type I have, some are single player, some have chimes.

A few years ago a 1 player version of the 'Check Mate' shown above came up on C-list
-I should of went for it

I just got a Lady Luck a few months ago, fun game, but they have a bit of a fundamental problem. While the quality of most of there components and assemblies is very good, the contact blades on the relays are flimsy which causes them to more easily go out of adjustment, (much like Chicago Coins) This can be very frustrating, as you can spend a lot of time getting the relays working perfectly only to have some go out of adjustment.

All that said though, they are very interesting games, Icarus is another good player!!