Translations:AY Honors/Pin Trading - Advanced/Answer Key/52/en
From Pathfinder Wiki
Hard enamel pins are made in the same technique as the cloisonné, but the recessed spaces are filled with a hard enamel paint rather than glass. The pin is heated to a very high temperature to harden or cure the paint, and then it is polished smooth. The paint and the metal borders/ridges are at the same level. If you rub your thumb over a hard enamel pin it will feel smooth and you will not feel the metal borders/ridges. The hard enamel filling gives a beautiful, high quality look similar to that of the cloisonné, but at a lower price and with more color options.