Carvings in ivory from back in the 17th century when that was fine. Some with rhinoceros horn. Georg Pfründt, maker (1603-1663). One piece by one of his followers. Ceremonial vessel. 1750-1775. Made in Augsburg, Germany. Rhinoceros horn, ivory, emeralds, gold plated silver and enamel. Made by Georg Pfründt. Image © KHM-Museumsverband, Wissenschaftliche Anstalt öffentlichen Rechts. Fair use license. via https://www.khm.at/en/objectdb/detail/89696/?offset=6&lv=list Nef. 17th c. South German. Ivory. Also known as the “Rothschild Nef,” because it was in their collections for many years. Attributed to Georg Pfründt. Image source: Sotheby’s. Fair use license. via http://www.alaintruong.com/archives/2016/12/20/34711869.html Cup. ca. 1675. Made in Augsburg, Germany. Rhinoceros horn, ivory, silver-gilt, and silver. Johann Mathias Scheppich, maker (1652-1705), Scheppich having been a follower of Georg Pfründt. Image © 2013 – 2018 Museumkijker.nl. Fair use license. via https://www.museumkijker.nl/indomania-brussel-rembrandt-beatles-iedereen-vrij/ Note: I am comfortable using these in my blog post because they were carved 400 years ago. They could be narwhal, elephant, or walrus ivory. It does not specify.