I think this napkin ring is silver-plate but it is not marked so can't be sure.  A magnet does not adhere.  I have nitric acid but I decided not to test this small item.  Also, there is a nice patina so I did not polish this ring.

Please view photos above carefully for condition and feel free to ask any questions. The weight shown is in grams. (35.82 grams = 1.2635 ounces)

To be shipped by USPS Ground Advantage or USPS Priority Mail, your choice.

In general, I combine shipping.  On request, I have done temporary combination listings for which each item is described with photos in the separate listings; but, with the combo listing, the shipping options show the fees for your location. 

I have listed several other napkin rings.

Thank you for looking.

Napkin rings are a collector's item with an interesting history.

Google AI Overview:

"Napkin rings originally served to identify each person's napkin so they could be reused multiple times between laundry days, a practice that was common when households did laundry only once a week. They were a practical item for family meals and were often personalized with names or initials to ensure everyone used their own. 

Function: Napkin rings kept a folded cloth napkin in place, making it easy for each family member to find and reuse their specific napkin between meals.

Practicality: Since laundry was done weekly, this system reduced the number of napkins needed for a household and was particularly necessary for large families.

Personalization: To aid in identification, rings were often engraved with names, initials, or numbers. They were popular gifts, especially for occasions like weddings and christenings, often given in silver with the recipient's monogram.

Guest etiquette: Napkin rings were not used for formal dinners with guests, as the presence of a ring was seen as an indication that the napkins were not pristine and had been used before." 

Wikipedia:

"The napkin ring, occasionally called a Christening bangle, was originally used to identify the napkins of a household between weekly wash days. The figural napkin ring is an American specialty in which the simple napkin ring is part of a small figure or sculpture that may take any shape and show any motif. Napkin rings appear as single items with the name or initials of the owner, notably given as christening presents, or pairs often given as gifts at weddings and silver weddings. In the English speaking countries, numbered sets of 4, 6, 8, 10 or 12 napkin rings are found. Napkin rings are an invention of the European bourgeoisie, first appearing in France about 1800 and soon spreading to all countries in the western world. Most 19th century napkin rings were made of silver or silver plate, but others were made in bone, wood, pearl embroidery, porcelain, glass, and other materials. In the 20th century, bakelite and other new materials were used."