Ancient Roman Glass Cosmetic Pitcher JugletRoman Period 200 300 CE, 4. 8 Inches High and 2. 2 Inches. Ancient Roman Glass Cosmetic Pitcher, beautiful pale blue color with a long neck and trefoil mouth. This trefoil shape gives the Jug an elegant look. In the middle of the 1st century BC, just as Rome was emerging as the Mediterraneans dominant political, military, and economic power, a technique pioneered by Syrian craftsmen arrived: glassblowing. It revolutionized the industry overnight,