Chicago Dreis and Krump Brake Help

[57eyes]

Looking for any identification and information related to this brake i am looking at buying.

Size L4 Serial Number 50705
It has the larger "I Beam" looking fingers in the front, as well as more conventional interchangeable ones.
Any help much appreciated

 

[cvairwerks]

Could be an Adjustable Double Brake model, or an early Universal. Probably have to run the data down from D&K directly, as that model number doesn't show up in any catalog I found. Either way, good one to have in the shop if you are going to do much sheet metal and don't have to have a press brake.