| Year of Issue | 1931-1940 |
|---|---|
| Printing Type | Poster Stamps |
| Region | United States |
| Certification | Uncertified |
| Country of Origin | United States |
Check the listing for details. 1938 Colorado Cool in Summer Mild in Winter Poster Stamp Sheet of 25. Made in United States. Listed at 125.00 USD. The product is a poster stamp sheet of 25 from Colorado, featuring designs that are cool in summer and mild in winter. These stamps were issued between 1931-1940 and are of United States origin. The poster stamps are uncertified, making them a unique addition to any stamp collection focused on specialty philately.