13.25x20-5/8" cardboard promotional piece that was originally produced as a two-page magazine ad, but was also printed on cardboard w/high-gloss coating, as seen here. 1960. Features photo of "Bonanza" cast members Lorne Greene and Michael Landon, "Laramie" star John Smith, "Checkmate" star Doug McClure surrounding "Mrs. Smartbuyer" shopper. Each star holds cans of Del Monte canned fruits/vegetables, which are showcased at right. This sign was not simply the magazine pages pasted to cardboard, as it was used as a promotional piece by an ad agency as noted by the "Peterboro Cardboards" name and "No. 1909 - 71512" on reverse. Corners show wear w/small corners of gloss coating off. Fine. Rare and first we've seen in our 48 years.