Replica Poster - Mar Y Sol Puerto Rico Pop Festival 1972 w/Black Sabbath, etc.

Replica Poster - Mar Y Sol Puerto Rico Pop Festival 1972 w/Black Sabbath, etc.  Not sure about the history of the "show" - however, this is a cool replica poster at a nice price.  I liked it for the aesthetics & artwork; please research if this "show" happened or not!  Measures 14 x 22 inches, is in good shape save for some minor bumps; small rip top right side and small dent to left side - some wear on edges.  It is printed on a more cardboard like material than a typical poster or typical promotional poster piece.  Please see pictures.  $12.50