Original 1st printing 8&1/2 x 10&3/8" double-sided concert flyer for the Doors appearing at the Westbury (NY) Music Fair (Nassau County on Long Island) on 4/19/1968 with announcements on the reverse for upcoming shows by the Turtles and the Vagrants (4/20), Jefferson Airplane (4/21), the Four Tops (4/26-28) and Pete Seeger with Len Chandler (6/17).

 Designer unknown, medium-thin vellum stock flyer is in decent/used (B-) condition; there is an EXTENSIVE amount of handwriting on the Doors side (someone's notes/comments regarding another event, in blue ballpoint pen), along with a semi-pronounced pair of horizontal/vertical folds, light handling wear and a touch of paper aging, otherwise OK.  

 Despite the conditional issues on this example, it's still a fairly hard-to-find Doors flyer from the Spring '68 tour. Apparently this show (parts of it) were filmed for "Feast of Friends". Check out the show stats (including color photos) HERE;

http://mildequator.com/performancehistory/concertinfo/1968/680419.html