Science and Invention Magazine February 1923
https://pulpcovers.com/wp-content/uploads/2014/05/Science-and-Invention-Magazine-February-1923-658x903.jpgvia via via
Science and Invention Feb 1923
https://pulpcovers.com/wp-content/uploads/2014/05/Science-and-Invention-Feb-1923-658x903.jpgvia via via
Science and Invention February 1923
https://pulpcovers.com/wp-content/uploads/2014/05/Science-and-Invention-February-1923.jpgvia via via
Howard V. Brown’s art.