I have an unusual frame that I have been trying to identify and also trying to fiquire out what kind of derailleur set up it needs. It is called a Edge Mass Start Special, appears to be a prewar frame, but maybe as late as the early 50's. It has unusual dropouts with a verticle and a horizontal dropout with derailleur hanger. It has 1 shifter boss. It also has a oli port on the top of the bottom bracket.
Check out pictures at
Look under the heading "Mass Start Special"
Any help would be appreciated,
Scott McCaskey Dalworthington Gardens, TX http://www.thecabe.com