This glass is one piece of the "meteor" set designed by Koloman Moser in the year 1899. We belive the monogram the be the Mautner Markof family sign. The Mautner Markof family was a rich industrial sponsor of the Wiener Werkstätte. They ordered many pieces from the Wiener Werkstätte and Bakalowitz. The Meteor set was one of the most successful lines produced by Meyer's Neffe. The glass is in a perfect condition, no chips, cracks or repairs. Only the gold trim line on the top has quite faded. Bibliography: Koloman Moser 1868-1918, Prestel, Leopold Museum: S. 127