Original 1969 Winterland Concert Poster John Mayhall, Bo Diddley, Muddy Waters

Description

On offer, we have the original concert poster for "Winterland Presents John Mayhall, Bo Diddley, Muddy Waters with Otis Span & Magic Sam". The concert took place March 27,28 & 29 1969. The bottom is printed "Post & Steiner Sts. San Francisco" and "Tea Lautrec Litho - S-F". The side margin is printed "Poster: Gregg Irons - 1969". This poster measures 28 3/4" X 13 3/4".
I am not an expert, but believe this is in very good to excellent condition for a 51 year old poster. It is a clean bright lithograph with no fading. The paper is a bit wrinkled from long storage and there is a faint spot on the upper left margin. This has no holes or tears.  Please view all photos for more description.
My friend who collects everything is starting to part with some of his treasures. Aren't you glad?
I will be happy to answer any questions and, of course, combine your shipping.