Anchor Stone pieces are made of a mixture of quartz sand, chalk, and linseed oil precisely pressed in molds so that they fit together perfectly. The first Anchor Stone building block sets were manufactured in 1880 by Richter of Rudolfstadt, Thuringia, in the Eastern part of Germany which was under communist rule after World War II. The communist forbid the production of the blocks claiming it did not comply with communist ideals. It wasn’t until 1995 that the sets were again manufactured.
