they are repopped , but not with the 'ribs' , just plain top....at least a few yrs back. I bought a set of repops from Classic , used those until I found a good used set with rib

maybe 67 wasnt ribbed?
I just looked up 67 rear qtr ashtray in classic cat. G7668 , $32.95 ea in my , a couple of yrs old cat.

www.classicindustries.com is their web address