NWOT Tall Frank Lloyd Wright Collection Dana Thomas Sumac Vase in Green. Rare Frank Lloyd Wright/Teco Pottery Vase Sells in the Hundreds of Thousands. The rare and “monumental” green-glazed earthenware vase has been featured in the publication Teco: Art Pottery of the Prairie School and measures 24 inches high – a rare find and an impressive price tag. The green natural glaze found on many Teco pottery pieces are familiar to Teco enthusiasts and American art pottery collectors as Teco Pottery founder William Gates preferred to keep forms and colors simple and uncomplicated in the early days. In addition to the familiar natural green graze, the most popular works from the Teco firm tended to be those that featured angular handles, displaying its tribute to simple design. However, the Frank Lloyd Wright connection to W. D Gates’s Teco Pottery stemmed from his collaboration with several members of the Chicago Architectural Club. The Teco Pottery firm created their wares near Chicago, home to Frank Lloyd Wright’s Studio. Gates hired designers from the Club for Teco, including Wright, who in bringing his own interpretation to the world of pottery, designed four works for Teco. In addition to the rarity factor, the large size of this vase (standing at 2 feet high) helped to make this work a standout collector’s item.