Antique Sommer&Maca Square For Cutting Glass time era: 1940-1960 For Sale

Antique Sommer&Maca Glass cutting square… a vintage wood and brass L shaped square used for Precision glass, cutting and drafting….Sommer&Maca was a staple in the American Glass industry throughout the 20th century… this specific tool features a reinforced brass joint to ensure the 90° angle remains true despite heavy industrial use…. The inscription on the base suggest it was once part of the invention of a professional glass shop like Flannery’s Glass in which it was used….. made in USA…