Antique & Collectible Show Promoters Association (ACSPA) The Antiques & Collectibles Dealer Association was formed to address the specific needs of dealers on a collective and individual basis. With our membership at over 2,000 dealers in all 50 states, and growing, we are becoming a viable force in the industry. Antiques & Collectibles Association (ACA) The Antiques & Collectibles Dealer Association was formed to address the specific needs of dealers on a collective and individual basis. With our membership at over 2,000 dealers in all 50 states, and growing, we are becoming a viable force in the industry. Antiques & Collectibles Dealers Association (ACDA) The Antiques & Collectibles Dealer Association was formed to address the specific needs of dealers on a collective and individual basis. With our membership at over 2,000 dealers in all 50 states, and growing, we are becoming a viable force in the industry. Antiques Dealers Association of Maryland, Inc. (ADAM) The Antique Dealers Association of Maryland (ADAM) was established in 1974 by a group of antique dealers whose goal was to work together to promote the highest standards in the antique trade and to preserve our state's rich heritage. Through the years, ADAM members have been dedicated to the enrichment of public appreciation and knowledge of antiques through projects such as antique shows, designer show houses, and educational seminars. National Association of Antique Malls (NAAM) The Antiques & Collectibles Dealer Association was formed to address the specific needs of dealers on a collective and individual basis. With our membership at over 2,000 dealers in all 50 states, and growing, we are becoming a viable force in the industry. National Association of Collectors (NAC) The Antiques & Collectibles Dealer Association was formed to address the specific needs of dealers on a collective and individual basis. With our membership at over 2,000 dealers in all 50 states, and growing, we are becoming a viable force in the industry. National Association of Dealers in Antiques, Inc. (NADA) NADA was organized with a definite conviction that the Antiques Business needed the help and guidance of a constructive, active national organization.