| Some artists |
| Certain artists |
| Durer and others |
| Some printmakers |
| Workers with acid |
| Acid-using artists |
| Artists using acid |
| Some glass artists |
| Artistic acid users |
| Aquatint specialists |
| Rembrandt and Picasso |
| Engraving specialists |
| Artistic users of acid |
| Ones making engravings |
| Dürer and Whistler, e.g. |
| Dürer and Rembrandt, e.g. |
| Crystal trophy inscribers, e.g. |
| Rembrandt and Picasso, at times |