Not exactly the same but see the advert of page 377 May 1964.
https://americanradiohistory.com/Arc...on-1964-05.pdf
Page 322 in April 1979 has something similar
https://americanradiohistory.com/Arc...ng-1979-04.pdf
You could just work back from April 1979 to find when it first appears.
https://americanradiohistory.com/Pra...n_Magazine.htm
Or forward if it's not close enough in appearance.
Peter