Glossary

The light etching of a cast-stone surface.

A masons small pick, with a flat face and pointed peen.

The qualifying adjectives acoustic and acoustical have the following meanings: arising from, actuated by, containing, producing, or related to sound. In general, acoustic is

Said of a metallic surface (e.g., a  nail) that has been treated in an acid bath to provide a rough surface.

Fully refined lead to which a small amount of copper has been added; 99.9% pure.

The polishing of a glass surface by acid treatment.

The degree to which a surface, such as porcelain enamel, will resist attack by acids.