old cheech & chong poster

In 1982 i found a poster advertising c & c at the university of rochester, appearing with "tufano and giamarese", an early 70's singing duo. anybody have any ideas about how to date this? thanks, tom in ny

HEY TOM,IM NOT SURE HOW TO AUTHENTICATE THE POSTER BUT IM WILLING TO PAY MORE THAN A FAIR AMOUNT FOR IT IF YOU'RE WILLING TO PART WITH IT.I HAVE AN IMPRESSIVE C/C COLLECTION OF MORE THAN 100+ PIECES IF YOU MIGHT WANT TO TRADE.GET BACK WITH ME IF YOU GET A MINUTE.THANKS!

I see you have a big C&C collection? I have a big one too? Do you have photo's of your stuff? I am putting mine on to dvd and am looking for new stuff every day. Would you like to share photo's. I just want everyone to see what is out there. Thanks....

DARRELL,I'LL TRY AND SNAP SOME PICTURES OF MY COLLECTIABLES WITH THIS VIDEO CAMERA I JUST GOT AND I'D BE HAPPY TO SHARE THEM WITH YOU,BE PATIENT THOUGH.I THINK YOU AND I HAVE BATTLED IT OUT A FEW TIMES ON EBAY,IVE BEEN A FAN ALONG TIME BUT HAVE BEEN SERIOUSLY COLLECTING C/C STUFF FOR THE LAST 10 YEARS.IF YOUR THE SAME GUY,WHOS A FAN OF SURFING I GUESS,I'VE GOT TO SAY YOU DEFINATELY ARE THE DIE HARD FAN,YOUR COLLECTION HAS TO BE MOST IMPRESSIVE WHICH I'D LOVE TO SEE.THERES ALOT OF RARE CONCERT POSTERS UP FOR SALE RIGHT NOW ON EBAY,IM SURE YOUR PROBABLY WELL AWARE,IM SURE WE'LL BE BOTH BE BIDDING ON BUT I GUESS IF ONE OF US GETS IT IT'LL BE IN GOOD HANDS.YOU KNOW IF YOUR THE SAME DARRELL I'M THINKING OF FROM EBAY,YOU COULD PROBABLY START A PRETTY COOL C/C MUSEUM WITH ALL YOUR RARE PIECES,MAYBE DOWN THE ROAD OR SOMETHING,IT'D BE COOL.ANYWAY,I'LL CHECK BACK HERE,TO SEE WHAT YOU SAY AND I'LL WORK ON GETTING THOSE DIGITAL PICTURES.OH YEAH,BY THE WAY WHERE ARE YOU FROM MAN?IM GUESSING ONE OF THE COASTS.