HURST Round Bar Shifter Handle ID?

[JoeC]

From what I can remember, Chevy was tight with the Hurst shifters and only used them in 69 to 71 Camaro and COPO LT1 70 Nova. Pontiac used a lot of round handle Hursts from somthing like 64 to 81. Olds used a flat handle press in type 442 were stamped 442. I would like to see a book on the Hurst shifters. I have the original Hurst story book but it does not have complete year to year info.