I recently acquired a Di-Acro Brake #4, which is a finger brake of 24" width, and (I assume) 16 gauge capacity. I am interested in finding a parts/operating manual for this specific model, as opposed to the available manuals found for current Di-Acro 24" finger brakes. This machine appears to me to be an older model, maybe late 40's early 50's design, incorporating finger-clamping screws that operate directly on the finger and pull the finger up into place through a vertical slot in a cast iron bridge clamp bar. The ones I have seen previously (and used) typically had some pieces of steel angle used with screws to clamp the fingers using a front-side slot, which is certainly an easier scheme to work with. In any case, if anyone has a source for older Di-Acro literature, I'd be interested. Thanks --