Back to the first 1988 can.
Circa 1988. This last 1988 can shows Santa quieting a doggie from 1961. The can reads:

SANTA CLAUS & COCA-COLA
A TRADITION SINCE 1930
The 1961 Santa was Sundblom's thirty-first. All of Sundblom's Santa have has a close family resemblance and have represented the patron Saint of the holidays as thoroughly loveable but also thoroughly human personality.