Here is an odd one badged by David Bradley that was produced by the Wright company.  The Wright company was the fore front of the reciprocating saws. They produced a good handful of models and a couple direct drive chainsaw models at the end.  The company went through a couple buy outs or mergers.  One was with Poulan where the saws were then badged by Wright and made by Poulan.  This particular recipricating saw has a slave piston that is directly to the blade.  I tossed in a pic of it as this saw went through a complete restoration that I will get pics up when the final touches get done.