"Thomas A. Edison. The World's Greatest Inventor" by Dick Prisk (PA, ??-??), ink on paper, signed and dated 1939, framed - 24" x 32" 
 
Portrait of the inventor at center surrounded by small vignettes showing Edison with his inventions, most notably the light bulb and Victrola. With Edison's birth and death dates noted at bottom, as well as the following statement, "Edisons Life Belongs To the World And All People. His Philosophy of Life was Work Bringing Out the Secrets of Nature and Applying Them for the Happiness of Man."
 
Very little is known abotu Prisk.  He appears to have been a self taught artist from Pottstown, Pennsylvania and may have supplemented his living painting advertising signs for local businesses.