November 7, 1986 Peter Oppenheimer Computer Graphics Lab New York Institute of Technology Old Westbury New York, NY 11568 Dear Peter: Please accept these 3 complementary copies of the SIGGRAPH'86 conference proceedings for which your image was printed on the cover. I appreciate your interest in obtaining additional copies of just the cover. However, as we discussed several weeks ago on the telephone, I know of no provision to print extra copies of the cover. I believe that this was an oversight that can be easily rectified for future conferences. Thank you for bringing it to my attention. Sincerely, Richard J. Beach Editor-in-chief cc: Ellen Gore, Ray Elliott, SIGGRAPH'86 Co-chairs