CNC Lathe 2″ Boring Bar Holder $600

This is a CNC Lathe Boring Bar Holder.  I do not know the maker or model number.  It holds 2″ tools.  By my measure, the keyway is 0.98″ wide and the bolt pattern is 3.72″ X 2.56″.  It has been used and has some wear and could use a little cleaning.  It does have some surface rust.