Now, who was it that thought it would be a good idea to portray Doris Day as a steamroller operator? It says right there that the International Harvester Series 56 is the only road roller endorsed by Doris Day. Somehow I just don’t see her comparing the smoothness of different models to decide which is best. But this is only one of many vintage ads with questionable endorsements. Groucho Marx for Frosted Flakes? Bill Gates for Radio Shack? See all 28 ads at Collectors Weekly.