The Rarity of Napoli

QUESTION: Recently, I discovered a glass biscuit jar at a regional antiques show. I collect art glass but have never seen anything like it before. What’s so unusual about this piece is that it seems to be painted on both the inside and outside. Can you tell me anything about it?

ANSWER: The only type of art glass that’s painted on both the inside and outside is Napoli glass, produced by the Mount Washington/Pairpoint Glass Company of New Bedford, Massachusetts.

Albert Steffin, the head of the Mount Washington decorating department, patented Napoli glass on May 22, 1894. He had found a way to decorate clear glassware on both the inside and outside. In a way he used another method of glass decoration called “reverse painting,” which originated in Antioch around 200 A.D., as his inspiration. During the 18th and early 19th centuries, American and European mirror and clock makers used this type of decoration to ornament the tops of mirrors and the glass doors of wall clocks.

Steffin’s method began by first outlining the basic form on the outside of the glass in silver or gold metallic paint. This outline then served as a guide for producing the design on the inside using colored enamels. This decoration process produced a novel and almost three-dimensional effect unlike the decoration on any other type of glass.

But Steffin didn’t invent this type of decoration solely as a way to produce a unique type of glass. He actually was more concerned about the savings it would give him because with two different types of paint, each on a different side of the glass, he would only have to fire his pieces once, thus offering him a big savings on fuel. If he applied the two different types of paint on the outside, he’d have to apply and fire one, then do the same for other and firing again. Firing both types of paint separately also resulted in a brighter finish and correct coloration.

Workers at the Mount Washington factory produced the majority of Napoli glass pieces using the same forms as the firm’s other art glass lines—Verona, Royal Flemish, and Crown Milano.  But the Napoli pieces have an interconnected network of lines that looks like a spider web which makes them stand out from other kinds of art glass.

One unusual decoration on Mt. Washington glass depicts Brownie figures, created by author/illustrator Palmer Cox. Brownies were extremely popular within a few years after Cox published his first children’s book in 1887.

Of all the art glass on the market, Napoli is the hardest to find. At first glance, it doesn’t look like it would be particularly valuable, but its rarity drives the prices of pieces upward. Many pieces have gilt lines painted on the outside which makes them especially appealing to collectors.

Each piece bears a mark on the bottom in gold enamel. with the word “Napoli,” followed by the shape number.  If the mark is in silver, then the piece may also bear another mark of “MW” for Mount Washington. Common shapes include vases, punch cups, marmalade and cracker jars. Salt and pepper shakers are the rarest.

To read more articles on antiques, please visit my Web site.  And to stay up to the minute on antiques and collectibles, please join the other 17,000 readers by following my free online magazine, #TheAntiquesAlmanac.

Valentines from Across the Seas

QUESTION: While vacationing in Nantucket last summer, I came across some beautiful souvenirs made of shells. The shop owner said they’re called “Sailor’s Valentines.” While the one I purchased is newly made, I saw others in the Nantucket Whaling Museum a few blocks away. What is the history behind these things of beauty? Who made them and where did they come from?

ANSWER: Most sailor’s valentines date from the early 19th century. Beginning in 1830, whaling ships set sail from Nantucket and later New Bedford, Massachusetts in search of mighty whales, from which they extracted whale oil used to grease the machines of the Industrial Revolution.


While Nantucket was the center of whaling in New England–at its height nearly 400 ships called the island port home—these weren’t the only types of ships that sailed the oceans of the world. Sailing ships, later known as clippers because of their fast speed, sailed to all the major ports of the world. From the early to the latter part of the 19th century when steam-powered ships took over the seas, the sailors aboard them spent years aboard in search of whales and moving cargo from one port of call to the next, often gone from home for several years. When they stopped to exchange cargo or gather provisions, they went ashore, discovering unique souvenirs to take home to their wives and girlfriends. Besides objects decorated with scrimshaw, which they, themselves, made, they found some unusual octagonal wooden boxes filled with seashells in shops on the island of Barbados in the Caribbean.

Between about 1830 and 1880, residents of Barbados made and sold what came to be known as Sailor’s Valentines to the lonely English and American sailors.

From the 1630s to the end of the 19th century, Barbados was an important port of call for sugar, rum, lumber, and fish. Because of this, a number of shops catered to the souvenir trade. The Victorian love for collecting and displaying exotic objects from afar possibly fueled the industry and contributed to the popularity of the valentines.

Historians believe that most of the sailors' valentines came from the New Curiosity Shop on McGregor Street in Bridgetown, Barbados, owned by two English brothers, B.H. and George Belgrave, who hired locals to make the valentines.

The local valentine makers constructed the special octagonal, hinged boxes, ranging in size from 8 to 15
inches across, using mahogany veneer for the sides and native cedar wood called cedrella, for the bottoms. Then they lined the insides of the boxes with colored paper, most often pink, onto which they placed cotton batting. Next they glued hundreds of colorful tiny seashells in intricate symmetrical mosaic designs incorporating hearts and flowers, which often featured a compass rose centerpiece. After gluing down all the shells, the maker placed a piece of glass over the design to protect them. They called these double valentines.

Sometimes the makers incorporated a special sentimental message that a sailor would request into the design, thus the name Sailors’ Valentines. Sentiments typically appeared only on the smaller 9½-inch double valentines, which often displayed a heart motif on the opposite half. Some of the more popular ones were “To My Sweetheart,” “To My Love,” “Home Again,” and “From a Friend.” The larger 13½- to 14-inch valentines rarely had sayings, but instead had more intricate shell-work designs on both sides.

Today, Sailors’ Valentines command high prices at auctions and antique shows. Some of the best, however, are part of the collections of the New Bedford and Nantucket Whaling Museums, and the Peabody Essex Museum, all in Massachusetts. Collectors value antique sailors' valentines for their beauty and unusual qualities. But their high prices make it difficult for most beginning collectors to acquire the originals. A small double valentine that twenty years ago sold for $350 to $600, now sells for $500 to $1,500, and the price for a large double valentine has jumped from $1,000 to between $2,500 and $10,000—that is if either can be found.

Plus, a thriving business making new sailors’ valentines has emerged on Nantucket Many of these have frames that have been faux finished to imitate the original woods and their designs copied to imitate the originals. Beyond the souvenir shops, collectors must be vigilant because many of these imitations have been sold as antiques.