In the August 2, 1941, New Yorker publication of his drawing captioned "While you're here, there's a squeaky trap-door I'd like you to look at," Morticia is back with her butler, now having a carpenter repair a secret-paneled bookcase door. This time she is very glamorous, with her hair still parted in the middle, a few matted tendrils at each side, but a fashionable gathering at the back of her neck; her gown is more stylishly tattered and quite low-cut, revealing a prominent collarbone and ample bust atop a statuesque figure. She has the appearance of a flamenco dancer but, nevertheless, a strong woman in complete control of a domestic situation.
From then on Morticia's appearance was firmly established, as described by Addams for the 1963 television contract, and her living circumstances were clearly that of the matriarch of the Addams mansion. Into the fifties, Morticia evolved into a truly glamorous femme fatale-no more circles under the eyes, new eye shadow, and stylized hair tendrils.
None of the books i have in digital format have a great image for this one. If anyone finds a better version, please share. The image in the post is from The Addams Family Album.