| Ring manufacturers participated in the campaign through radio advertising and by sending out newspaper electrotypes to be used by jewelers across the country. |
| Electrotypes have a distinctly sharper and harder face and are deeper than stereotypes. |
| The innovation of electrotypes in the mid-19th century added yet another dimension to the art of copying. |
| Wax is used as the plastic medium in which to mold electrotypes, whereas for stereotypes paper is used. |
| The images in these larger editions were printed from electrotypes, which faithfully retained all the details and characteristics of the original. |
