Justorium
The justorium ( Latin ) was a tool used by type founders .
The justorium consisted of a two-sided iron box with a right-angled edge. It was used to check and determine that the letters were cast correctly .
The justorium ( Latin ) was a tool used by type founders .
The justorium consisted of a two-sided iron box with a right-angled edge. It was used to check and determine that the letters were cast correctly .