Ran across this ad on CL for what appears to be a Marquette jack. Maybe someone should pick this one up and complete what ZRX61 wouldn't or couldn't.

http://www.garagejournal.com/forum/showthread.php?t=56550&highlight=marquette+jack

http://www.garagejournal.com/forum/showthread.php?t=56550&highlight=marquette+jack