Campbell Ewald, Warren 
- 30400 Van Dyke Avenue
- Warren, Michigan 48093-2316
- United States
- Phone: 586 558-4400
- Fax: 586 558-5896
- Country Phone Code: 1
- Website: www.c-e.com
- Email: Barbara.Yolles@c-e.com
USPS - “U.S. Postal Service”
United States Postal Service| Title | U.S. Postal Service |
| Agency | Campbell Ewald |
| Advertiser | United States Postal Service |
| Brand | USPS |
| Product Name | Priority Mail Flat Rate Boxes |
| Product Category | Postal, Courier & Shipping Services |
| Campaign Name | A Simpler Way To Ship |
| Country of Production | United States |
| Media Type | Case Study |