It only indicates the date the patent became issued. Normal signs of age which change the appearance of the finish. Most commonly used for wood or metal. Patina generally refers to a desirable look of age. As wood ages, for example, it acquires a certain sheen or appearance, the richness of which comes only with time.
Collectors find patina desirable.
Someone who buys antiques and collectibles at low prices, typically at garage sales and small local auctions, and then resells them for profit. Also, the soft, furry fabric used to create stuffed toys. The mark is often left rough, so there's a scar or a raised area where the glass separated from the rod. Some artists make a pontil smooth. The term used by dealers and experts to describe an object painted in a variety of colors.