I have two new rear carpet pieces for sale -- brand new/never used/never installed.  These are the two pieces that go on the floor on either side of the transmission tunnel, right behind the seats.  They were produced by Newark Auto Products, for a 1971-1974 240Z/260Z.  (They could probably be used in other year models, as well; but that's up to the buyer.)

Color is black, knit style is like a fine closed-loop, with medium thickness heat & noise insulation backing on each piece.

$25 for both pieces shipped anywhere in the U.S.  Thanks for looking.