72 Duster 340 4 Speed with AC Production Numbers?

From what I can remember when ordering an A-body car in 1970 you could not get AC with 4 spd. in an a-body. Only 3 speeds. All manual trans a-body cars I ever had with AC were 3 speed if manual trans .
Original Fender tag is present on this 72. E55, D21 and H51 coded.