What is the origin of 'pale, male and stale'?

The combination of words seems to have originated as part of a spoof advertising slogan in the 50s. It seems quite plausible (but obviously not certain) that this is the origin of the modern usage. It could, of course, have evolved multiple times.

From "The Connoisseur's Guide to Beer" by James Donald Robertson (1984):

This brand first appeared in 1954 when radio KDKA disc jockey Rege Cordic aired a series of zany commercials for the fictitious beer, Olde Frothingslosh, The Pale Stale Ale for the Pale Stale Male.

The eldest reference that I could find was from a book about American Women and Flight Since 1940, saying

In 1992 NASA administrator Daniel Goldin declared that the agency was too "pale, male and stale."

But I also stumbled about some uses of "male, pale and stale" while looking for that.