Anybody in the San Francisco Bay Area, there is a cool western electric cord board for $175.00, on the San Francisco Craig's list
A 555 board equipped with 60 stations,8 trunks and 11 cord circuits. If it has all of its equipment inside this is one that dial or common battery phones could be connected to and they would work. Needs a 24 volt DC power supply preferably with 90 volt AC ringing supply in it as well. The power supply could be inside but they usually wasn't mounted inside the cabinet.
Terry