[Timothy Leary, Los Angeles March 1992. If you look closely you can see Allen in the mirror taking the photo. c. Allen Ginsberg Estate]
In celebration, here's some vintage Leary audio from 1967 recorded at Alan Watts' Houseboat Summit, that includes Leary, Watts, Allen and Gary Snyder.
Keep a look-out for Peter Conners' White Hand Society The Psychedelic Partnership of Timothy Leary & Allen Ginsberg due out any day now from City Lights. It includes the entire transcript for the above "Houseboat Summit" as it was printed in the San Francisco Oracle.