Totally unexpected I found (with my best buddy the Minelab CTX 3030) this late medieval golden finger ring with a black table cut diamond. Probably the owner of the ring was a bishop or someone of that nature. On both sides of the diamond (the Holy Spirit) you can see a halo and 6 drops engraved. (the twelve disciples). So (probably) the ring tells us the Pentecostal story.
Dwalex - Netherlands