[65madgoat]

That raised version I think may be the earliest - and thus why so pricey to attain.

Heck even the slightly raised version (but with no round ridge showing below when emblem is mounted) might be pre 1976 and still commands a premium.

See these two versions are what I am most concerned with knowing the years of.

See how the knobs are different but emblems about the same style being acrylic with chrome edge.... (First and third photos are the same with that exposed ridge below emblem)