I suspect this is an all-Golden Age issue; then there were the Earth-Two versions of Wonder Woman, Dr. Psycho and Cheetah. The anterior issue (WW #159) shown the Golden Age Wonder Woman's origin; And in this issue (160) the artist imitated the Golden Age art. The Who is Who in DC Universe Sourcebook #3 statizes that Dr. Psycho in this story is from Earth-Two. Mars, in the same story is obviously the Earth-Two version, as Earth-One Mars is bearded.

That was my thought initially, but the Essential Wonder Woman Encyclopedia lists #160 as the first appearance for the Earth-One versions of Cheetah and Psycho.--Tupka217 10:37, June 6, 2017 (UTC)
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