The pottery does have a roughness in its execution, with some pits and debris embedded in the clay and glaze. It has an exotic look to it and would fit in nicely with Art Nouveau, Arts and Crafts or Mission style interiors. It even has an almost Moorish look to it. I don't have a lot of information on the Eastern Art Teachers' Association, but there is a connection with the arts community in Brooklyn at the turn of the century.
According to a New York Times article, the organization was formed in Brooklyn in May 1899 and had its first meeting at the Brooklyn Institute of Arts and Science at 174 Montague Street (a branch office of the Institute at the time the current Brooklyn Museum was being built). The item "1905 Art Nouveau/Arts & Crafts Belgian Snake Handles Ceramiques de Flandres" is in sale since Sunday, November 3, 2019. This item is in the category "Pottery & Glass\Pottery & China\Art Pottery\European Pottery\Other European Art Pottery". The seller is "potteryboyz" and is located in Hoboken, New Jersey.This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.