6 unusual handblown Art Deco style wine or water glass from Verrerie Doyen in Belgium. Normally you will see them with 2 green rings at the stem. In this case its the feet that is green, which then reflects the colour to the stem giving the impression the stem is green. Based on the underside of the feet, which bear marks from the cut of the glass at the end of the production it's believed to be early models, maybe from around 1915 or maybe before, but not before 1911, where production began. Also the many air bubbles and the many impurities in the glass suggest an early model. Some of the glases have the T mark in the bottom from the cut. Every glass is slightly different in size and shape from the others as a consequence of the hand blown production. The feet's varies up to 7 mm is diameter. Also the relief in the glass turns a little on some of them. The relief goes to the stem on some of them, on others it stops 2 cm above the stem. All above makes each glass a unique piece. It could be a sort of prototypes of the later common 2 green ring glasses. They contain uranium or magnesium which is why they flourecence under UV light. The lead content must be quite high as they almost sing like crystal glass. Established in 1909, Verreries, Gobeleteries d'Havre-Ville - C.Rose et Cie was established by Camille Rose (formerly an employee at Verreries Saint Laurent in Manage). In approximately 1911 Jean-Baptiste Doyen took control of the site at Havre-ville and began with son Gaston to develop a glass factory on the site. With the arrival of the bottle-making machines, all the glass businesses in Belgium were confronted with the need to refocus on a more specialised markets. On resuming production after the war in 1918 the factory passed to his brother Gaston and in 1926 to Gaston's widow. According to Michele Thiry (in 'de L'art deco aux annees 50'), Doyen was one of the exhibitors alongside Val St Lambert at the Paris Expo of 1937. The factory produced glass to any design that a customer could show or draw, and often kept the moulds for the 'exclusive' use of the customer so that wholesalers could put their own label on a product. The factory employed 556 worker in 1930, 437 in 1946, and 532 in 1947. After WW2 the factory was restarted under the ownership of her son, Paul Doyen. The factory was mostly silent after 1968, was taken over by Manuverbel and closed in 1975.