"Gropper: Fifty Years of Drawing 1921-1971" is a 48 page, 8.5"x11" softcover published by ACA Galleries (New York) in conjunction with a 1971 exhibition of art by William Gropper. There's an essay by Louis Lozowick and many black-and-white reproductions.
In good condition with discoloration, various small stains, smudges and spots to the cover, writing at front top. The interior is unmarked.