The complete playfield rotated manually under the glass table top providing the ability for 4 seated players to access the machine with out having to move.
The Specta IV is one of only two rotating Solid State cocktail table pinball machines made. Valley Co. was a subsidiary of Walter Kidde Co., maker of the fire alarms and such. Current known working machines are estimated to be less than 25. Original design placed 3 NiCd batteries on to the main CPU board and it is very common to have the CPU board damaged by these leaking batteries.