Friday, May 21, 1971 United States of America will issue: Stamp ""USA" and Jet" face value 21, Stamp ""USA" and Jet" face value 21, Stamp ""USA" and Jet" face value 21,
| Country: | United States of America |
|---|---|
| Issue: | Airmail 1968-1973 |
| Date: | 1971-05-21 |
| Print: | Photogravure |
| Perforation: | 11 |
| Emission: | Air Mail |
| Format: | Stamp |
| Face Value: | 21 United States cent |
| Country: | United States of America |
|---|---|
| Issue: | Airmail 1968-1973 |
| Date: | 1971-05-21 |
| Print: | Offset lithography and Recess |
| Perforation: | line 11 |
| Emission: | Air Post |
| Format: | Stamp |
| Face Value: | 21 United States cent |
| Country: | United States of America |
|---|---|
| Issue: | Airmail 1968-1973 |
| Date: | 1971-05-21 |
| Paper: | Tagging omitted |
| Print: | Offset lithography and Recess |
| Perforation: | line 11 |
| Emission: | Air Post |
| Format: | Stamp |
| Face Value: | 21 United States cent |