Etching, also known as intaglio printmaking, is a type of printmaking where lines are incised onto a plate, which can be made of copper, zinc, plexiglass, or a variety of other materials. In traditional printmaking, a ground is applied to the plate and a scribe is used to scratch through the ground. Then the plate is placed in an acid bath and the acid eats through the metal in the areas where the scribe has removed the ground.
Another technique, called drypoint, can be seen in the prints here. This method is more direct and requires no acid. The artist simply uses the scribe to scratch their image onto the plate.
When printing, a special ink is applied to the entire surface of the plate, then carefully wiped away. The ink rests inside the marks made by the artist, and the image is transferred to paper when the plate is run through a printing press.
These prints were made at the studio of Lee Newman, a local and well regarded painter and printmaker.