Answer:
Yes,
Joan Blondell posed nude. A Warner Brothers star and pin up model of the 1930's.
Jack L. Warner had a nude photograph of Joan Blondell taken at a Southern California Beach. The photo was made in 1930 by a Warner Brothers Studio staff photographer. Why the confusion of Joan Blondell posing nude, Jack L. Warner to calm brother Harry Warner's anger, claimed the photos were of "Inez Holmes" the pseudonym Jack L. Warner first offered Joan Blondell.
During the 1930's Joan Blondell continued to pose nude in a bathtub with a scrub brush and sitting reverse in a large chair.
At the 1939-1940 New York World's Fair, a nude sculpture of Joan Blondell was placed in a 1939 time capsule. Citation: Glamour Girls by Steve Sullivan, 1999.
During World War II, Joan Blondell posed in nude, seated in a wooden chair her legs were crossed wearing opera gloves and open toed shoes.
Celebrity Sleuth Vol. 6 #3 published the nudes of Joan Blondell in 1993.