Stamp Commemorating "Bobo" - The First Circus Dog in Space

I made this stamp in memory of my cousin, Walter J. Wild, who years ago sketched a postage stamp featuring the moon.  He gave me the scrap of paper he drew it on and I treasure it.  Walter passed away on January 11, 1999.  This is a paragraph from his obituary published by the AAS (American Astronomical Society):

"Walter J. Wild, a senior research associate in the Department of Astronomy and Astrophysics at the University of Chicago, collapsed and died at the age of 44 while attending a lecture at the University on January 11, 1999. Walter was known world-wide as an expert on the mathematics of adaptive optics, a real time technique for compensation of image distortion caused by atmospheric turbulence."

The background of the moon & stars was taken from "Our Old Fashioned Country Diary for 1994" and the dog is an illustration by Corinne R. Bailey for the children's book " I Want To Be A Circus Man " 1934.