ART NOUVEAU German Pewter Beaker. This is a very nice Art Nouveau pewter beaker with relief-cast decorations depicting the image of the “4-F Gymnastic Organization” where the 4-F symbol stands for Frisch, From, FroH and Frei. Twin Tankard Antiques is one of the world’s leading dealers of antique European pewter. We are members of the British Pewter Society, The American Pewter Collectors Club, Stein Collectors International (SCI) and current President of the Gambrinus Stein Club. Every item we sell is extensively researched and guaranteed to be authentic. We carry a full line of museum quality items for the discerning collector. We have recently published a book on British pewter pub pots titled: British Pewter Pub Pots of the 19. This publication has over 200 detailed images & photographs of the various types of pub pots and their mysterious markings.