American Chemical Society Diamond Jubilee
60%
| Country: | United States of America |
|---|---|
| Issue: | American Chemical Society Issue |
| Date: | 1951-09-04 |
| Print: | Recess |
| Perforation: | 11 x 10½ |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 3 United States cent |
| Print run: | 117000000 |