The Type High Gauge.

Type High Gauge
This tool measures the height of a piece of type or a forme and came in a variety of styles.
The most common is a forked tool into which the type is placed. A set of marks scored into the gauge note type high.
Like the roller gauge, this tool is very useful when troubleshooting problems on press and will help eliminate problem issues.
Image Credit: Photograph by Kyle Van Horn
Source: General Tools and Supplies – Letterpress Commons

About Derwombat

My name is Rod Parham, Hot Metal Compositor. I was born in Adelaide, South Australia in 1947. Single with two children and a grandson. I Love History, Movies and Words.