You are looking at the back seat from a 73 Pontiac Grand Am coupe. Correct for 73 to 77 Lemans, Grand Am, Can Am & 73 GTO. Also possibly Chevelle, Monte Carlo, Grand Prix, Century, Regal, GS, Cutlass, 442. Do your own home work if buying for non-Pontiac A body. Base measures 53 across and 17 inches deep. The back is 52 x 24. It is pale yellow or blonde in color.  The original upholstery need replaced. The cushions, fames & springs are good. A good seat core to recover. Often hard to find.