Before the days of the internet, it was normal for all of the most influential people in the worlds to have signet rings. Every ring was unique and on the face of the signet would have been the family crest or simple monograms/icons. The detail on the signet rings were remarkable, they were reversed engineered to ensure the design came out properly when they were stamped on any document. The rings were used to confirm the authenticity of any document, like a signature.