In 1923, Paul Heuduck and his family emigrated from Germany to America at the request of his employer, the Berlin mosaic and art glass firm Puhl-Wagner. Paul helped establish the Ravenna Mosaic Company, a joint venture between the St. Louis art glass studio owned by Emil Frei and Puhl-Wagner, to work on the Byzantine glass mosaics for the new St. Louis Cathedral. Filmmaker Jim Scott is interviewed then see the film “Worlds of Bright Glass: The Ravenna Mosaic Company.”