I have six(6) tech specs books for sale (used) but in excellent condition.1st english edition. 912,$ 45.00 ,$32.00 69,70,71 911t,911e,911s,$32.00 72,73 $32.00 911t,911e,911s,$32.00 $32.00 74 911,911scarrera, $32.00 76-77 911,carrera3.0 turbo,and $ 38.00 914 1974 these are all pocket size tech specs.no longer in print. my e-mail is
christod@sbcglobal.net