I have seen this work attributed to both Clarence Doore and James Meese. Source:
Clarence Doore pic.twitter.com/XVeP6yjBVG
— ULTRAKiLLBLAST (@ultrakillblast) March 6, 2017
The original context appears to be a men’s adventure magazine cover:
Found here.
Second image contains the text “Slave girls were imported and sold at public auction.” According to a pair of posts ( 1 2 ) on the Drake’s Way tumblr, these are two parts (perhaps appearing on facing pages) of an illustration by James Meese for a story called “The Wantons Who Ruined a Nation”, appearing in For Men Only magazine in April 1955.
Image provenance by Bacchus at Erosblog.