Offset lithograph on paper. 48.3x35.6cm. Folded three times for mailing. An announcement poster for 'Fluids', a happening in which enclosures were built from large blocks of ice around the Los Angeles area and then left to melt away. The poster advertises the event in advance, which was scheduled for October 10, 1967, and solicits volunteers to help build the enclosures (this poster has the stated date of the 11th changed in red, as usual). The event was documented photographically by Dennis Hopper. Fine.