This is a 4 harness counterbalance "vintage" loom.  I am not sure how old it is, probably from the 1930's, but I am really not sure.  I have put it together (and taken it apart) and all the parts are there, BUT it needs quite a bit of refurbishing.  anything cloth is rotted and anything metal is rusted.  It has great potential, but will take some work.  I have some literature that pertains to it.  $150.00