Large and impressive 22x28" silk-screened cardboard promotional poster issued in the late 1960s. Poster was designed w/blank area at bottom. Poster has images of the show's three main stars of the popular NBC Western that ran 1959-1973 - Michael Landon, Dan Blocker and Lorne Greene and has been signed by all three at bottom in black ink. All have added "To John" inscriptions, Landon adding "Best Wishes" and his character name "Little Joe," Blocker has added "My Best Always" and Greene has added "Best Wishes." Poster has scattered moisture staining around margins and corner tip wear. VG, but main image of poster still displays well. Signature area is mostly unaffected and bold signatures display VF. First we've offered and as impressive a Bonanza cast-signed piece as you will find. Comes with Hake's COA and JSA LOA.