Porter Advertising billboard sketches, 1950s-1970s.
Related Entities
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John W. Hartman Center for Sales, Advertising & Marketing History
http://n2t.net/ark:/99166/w68d3m75 (corporateBody)
Porter Advertising (Firm)
http://n2t.net/ark:/99166/w6s52pxt (corporateBody)
Out-of-home advertising company founded in 1945 and based in Richmond, Ind. From the description of Porter Advertising billboard sketches, 1950s-1970s. (Duke University Library). WorldCat record id: 535272257 ...