Vintage Italian leonna silver plated wine or glass star burst coasters unusual set of 4 ( wine not included 🤣) lovely quality items  10 cm round 2 cm tall would make fantastic statement pieces in any table some age related wear 
Wine coasters, originally called "bottle sliders" or "bottle stands," emerged in the 18th century as a way to prevent wine bottles from scratching or staining dining tables. They were initially made of wood or silver and used to "coast" wine bottles across the table, allowing guests to serve themselves. By the mid-20th century, drink coasters in various materials became common for domestic and restaurant use. 
Here's a more detailed look at their history:
18th Century:
Coasters, often made of wood or silver, were introduced to prevent scratches and wine stains on tables. They were particularly popular for formal dinner parties where large groups were entertained and wine was often served after staff had retired. 
Early 19th Century:
Silver and wood were combined to create elaborate coasters, showcasing the skills of artisans. Drinking wine at dinner became fashionable, and wine coasters were used to slide decanters or bottles across tables. 
Mid to Late 19th Century:
The term "wine coaster" gained recognition, evolving from "bottle slider" to reflect the sliding function. Claret jugs became popular, leading to a temporary decline in coaster use. 
Late 19th and Early 20th Century:
Coasters made of cardboard and wood pulp were introduced, and the brewery Watney's introduced them to the UK to promote their ale. 
Mid to Late 20th Century:
Coasters, including those for various drinks, became commonplace in homes and restaurants, with various materials and designs. 
Modern Era:
Wine coasters remain in use as functional and decorative items, protecting table surfaces and enhancing the wine-drinking experience. 
Drink coaster - Wikipedia
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