Based on old discussions on the previous forum and also the Concours forum, my understanding of the C5AE ink stamped filter timeline is...
65-mid(?)66 - Silver body/Red Rotunda ink stamp
later 66 - 67 - Silver body/Red Autolite ink stamp
68-69 - Gold body/Red Autolite ink stamp
69-70 - Gold body/Black Autolite ink stamp
Is that still generally correct?
Thanks,
Dave