These came in a bulk load of parts I picked up a while back.  Oval foam type air filters that look to be new but not in the original boxes, for 70 - 72 SU (Hitachi) carburetors. The are similar to the Black Dragon LongFlo style air cleaners found on page 71 of their catalog listed at $39.99 each.  Asking $55 shipped (med flat rate box is $13.45) Thanks.