Help ID a tranny off of craigslist

here are a couple of good links
first the slantsix.org 4speed tech
http://www.slantsix.org/articles/4-speeds/ODA833fourspeed1.htm

next the bigblockdart.com long tail 4speed in an A-body conversion bracket link
http://www.bigblockdart.com/techpages/abconv.shtml