Need help ID this maker. 5 forks, 6 t-spoons, 6 T-spoons. All cast with hallmarks shown and stamped WM.FRANTZ & CO. Felt jackets have "Wm.Frantz & Col Inc. Jewelers, New Orleans, L.A." patches. Have been unable to ID hallmarks or learn more about Frantz (except he or namesake immortalized on public school where Ruby Bridges marched to school by federal marshals and painted by Norman Rockwell). This partial set an heirloom from woman born & raised near New Orleans. Many thanks.