I think the correct answer is that the Campbell Soup company's advertising department came up with the design sometime in the early 1900s.
See Related Links for some pictures and historical information.
You can find out more about campbell's coupons at http://soup-coupons-delivered.com/common/campbells-coupons or you can also try http://www.grocerycouponguide.com/articles/campbells-coupons/.
Tomato soup
Campbells Soup coupons could be found online via a number of websites. You could visit websites such as Campbell Soup, Campbells Kitchen and Surviving the Stores to get them.
A painting of a Campbell's soup can.
Tomato
campbells
Andy Warhol. 32 soup cans in all.
Campbells Soup Cans
if you mean campbells soup cans, it was Andy worhol.
He influenced it by being the main founder in the revolution called, "Pop Art".
284 ml. in a regular can of condensed soup
You could "Google" this question much quicker!