With respect to each and every example of vintage advertising posted to Velo-Pages, all date references provided herein should be considered that point in time when a given example was first known to have been published and/or posited into the public domain, and NOT necessarily that date of the particular example chosen for representation. In this instance, an exact copy of the advertisement in question actually appeared earlier in a publication dating from May of 1976, however, I found the ad copy itself to be better preserved, and hence a better candidate for subsequent digitization, in an August edition of that same publication as seen here.
I apologize for any confusion arising from my use of the aforementioned sample selection methodology.
