Double sided poster originally folded in eighths and sent through the mail to advertise the Salsedo Press Cinco de Mayo Mayday Blast. One side of the poster contains a reproduction of an artwork that incorporates multiple figures, skeletons, and various objects in a surreal landscape. A red band across the bottom contains the text, "Salsedo Press 18th Annual Cinco de Mayo/Mayday Blast / Saturday May 4, 1991 * 8 PM - Dawn * 320 N. Damen * Dancing * Free Beer * Live Music * $12." The other side of the contains the front and back sides of the mailing at top right and paragraphs of text with the headings, "May Day," "El Cinco de Mayo," and "The 5th of May" on the bottom half of the page.