Glassmasters, manufacturer of MI Hummel stained glass, is world renown for creating stained glass designs of licensed museum artwork and replicas of original stained glass windows. The imagery is painstakingly recreated by artisans who hand apply translucent enamels to cathedral glass in a traditional one color at a time process. Each color is fired into the glass at temperatures above 1100-degree Fahrenheit. The enamels actually become part of the glass. Each design recreated by Glassmasters is unique.