About 100 images, including May Day parades in New York City that showing participation bhy the non-communist Left, Socialist Party rallies featuring anti-Mussolini/anti-Hitler picket signs, "Yipsels" (members of Young People's Socialist League) at the beach and at picnics as well as at meetings and rallies, City College of New York students protesting against the college's president, eviction of Brownsville (Brooklyn, NY) Labor Lyceum. Images from outside of the United States include photo postcards of the 1931 Workers Olympiade in Vienna (sporting events and spectators/visitors), and "Social Revolutionaries in Gomel Forest" in 1904. Individuals include Socialist Party activists and leaders (from both the national organization and New York City) such as Norman Thomas, Charles Solomon, James Maurer, Abraham Shiplacoff, Louis Sadoff, Winston Dancis, Samuel J. Friedman, Morris Hillquit, (Jewish Daily Forward editor) Abraham Cahan, and Frank Crosswaith (founder of the Negro Labor Committee).
Although Lopatin worked as a photographer for theJewish Daily Forward, none of the photographs in this collection have a credit stamp for him, so it's not possible to identify how which of these images,if any, he may have shot.