Mixed lot of seven reference books, exhibition catalogue ''Edles altes Glas - Die Sammlung Heinrich Heine Karlsruhe'', Badisches Landesmuseum Karlsruhe, Corona Verlag, Karlsruhe, 1977, 156 pages; ''The Golden Age of Venetian Glass'', British Museum, London, 1979, 136 pages; Karl-Heinz Poser, Old Drinking Glasses in Schleswig-Holstein, self-published, Neumuenster, 1981, 120 pages; Exhibition catalogue of the Dr. Heinrich Brauser Collection ''Glasses: Antiquity-Middle Ages-Modern Times'', Museum of the City of Regensburg, Corona Verlag Karlsruhe, Karlsruhe, 1977; Walter Spiegl, Glas, Battenberg Antiquities Catalogue, Battenberg Verlag, Munich, 1979, 176 pages; Thomas Dexel, Gebrauchsglas, Klinkhardt & Biermann, Braunschweig, Braunschweig, 1977, 234 pages; Franz Carl Lipp, Painted Glasses - Folk Imagery on Old Glass, Verlag Georg D.W. Callwey Munich, Munich, 1974, 224 pages;