Jim Henson signed autographed photo silver marker COA hologramJim Henson signed photo Muppet Show silver marker, complete with number and certificate document at hologram noting signature date and location. All of our Certificates of Authenticity ( COA ) state the location and date of where the autograph signature was obtained. We are the only dealer as far as we know that provides this information with every item! In the hobby of memorabilia, this is very important.