Porcelain Neon Signs are among the most sought after and most expensive of all porcelain signs. Restaurant owners want them displayed in their establishment, collectors would love to show them off to their friends, and many are still in use above a business. These are porcelain signs with neon’s, which are electrified, luminous tube lights that contain rarefied neon or other gases. Many of these signs are found with the neon tubes missing. Most have the tubes intact. Either way these porcelain signs still bring a high price with many collectors.