The families of the International Association of R.S. Prussia Collectors invite you to join our organization. Members are confident that you will enjoy the friendly atmosphere of the organization and our conventions. Members truly enjoy the beauty and rarity of the R.S. Prussia porcelain. The various designs, colors, and scenes make the collecting of R.S. Prussia a lifelong pasttime. There are members throughout the United States, Canada, and New Zealand who share the enjoyment of collecting this fine porcelain and frequently write and visit each other to keep in touch with the Prussia families.
https://www.rsprussia.com/index.html