Taito 22-Pin Filter Board

Original Taito filter board that we suspect was used on certain early Taito games such as Jungle King, Jungle Hunt, Alpine Ski and Elevator Action. Original Taito Part #32-00290-001 Issue A. This is a 22-Pin filter board, we haven't come across one like this and aren't 100% sure what game it is for, see pictures for more details.