This is one of the very popular images of the psychedelic era.  It may be somewhat difficult to distinguish on the scan, but the background of this image is filled with (at least) a thousand tiny heads, drawn so they are part of a larger head that more or less occupies most of the image.  VERY wild.

The original/first print poster was printed on uncoated index paper stock, similar to most Fillmore originals printed during 1968.  It measures approx.  14" x 21".

The second print poster, an authorized reprint, was printed on a glossy/coated paper stock, similar to Fillmore originals printed in 1969-1971, which is most probably when this poster was printed.  This poster measures approx.  14" x 21".

The original postcard was printed prior to the shows, and has a place stamp here back.  It measures approx.  4 1/2" x 7".

A double postcard of this image and BG 111 was also printed.  It measures approx. 4 1/2" x 14", and most of these were mailed.  The reverse of the BG 112 image on this card has a bulk rate stamp, so if a BG 112 card has a bulk rate back, it has been cut from a double card.