Graflex RH-10 roll back (lever wind) which takes 120 film and gives 10 6x7 cm images. Fits Graflok 4x5 backs, and has dark slide. Seems to work but used for only 1 roll. graflex.org has information about the RH-10 if you need it. I'd rather this be out there in the hands of people who will use it.
$45 plus shipping which should be about $8 to the US (other places - PM me). Other offers accepted; just let me know. 2% to APUG. Ask questions if you have them.