Placement Company
- R. C. Maxwell Company1,991
- Eller1,405
- Foster & Kleiser1,352
- Criterion Advertising176
- Gannett Outdoor134
- Naegele132
- General Outdoor Advertising Company122
- unknown118
- Columbus Outdoor Advertising Co.93
- United Advertising Corporation90
- Morton Company50
- Donnelly Advertising42
- O'Mealia Outdoor Advertising Company35
- illegible29
- Gantner26
- Turner Advertising25
- [United Advertising?]22
- Moving Media20
- Mediacom16
- Pittsburgh Outdoor Advertising Co.16
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