Quote:
"Permit No. G-10"--does this mean the USPS was footing the bill for delivering this piece of advertising?
Not quite.
The above was only a sample illustration used by the USPS. The entire concept was a "test" market and, frankly, I think the idea failed, but there still must be some of these cards out there, although from a philatelic perspective, I'm not sure how many reached collectors hands:
