A Silver Alternative

 

QUESTION: As I was browsing a weekly flea market, I came upon a curious silver vase—at least I thought it was silver. But when I picked it up, it felt like glass and was much lighter than silver. The dealer said it was Mercury glass. I never heard of such a thing. Can you tell me more about it?

ANSWER: As the Industrial Revolution gained momentum, the growing middle class wanted inexpensive alternatives to the silver objects owned by the wealthy. One of those alternatives was Mercury glass, first made as an inexpensive silver substitute. Soon it evolved into an art form of its own.

First produced in the late 18th century, Mercury glass was a handblown, double-walled glass with an interior coating of silver-colored metal compounds. It took many forms, including candlesticks, compotes, candy dishes, plates, goblets, wig stands, curtain tiebacks, and doorknobs. Some critics condemned it for looking too much like mirrored glass and too little like silver, which was what people liked about it.

Produced originally from around 1840 until around 1930 in Bohemia, now the Czech Republic, and Germany, it spread to England in 1849 when Edward Varnish and Frederick Hale Thomson patented the technique for silvering glass vessels, and continued to be made there until 1855.

Mercury glass, also known as silvered glass, contains neither mercury nor silver. It's actually clear glass, mold-blown into double-walled shapes and coated on the inside with a silvering solution containing silver nitrate and grape sugar, heated, then closed. Sealing methods included metal discs covered with a glass round in England, or a cork inserted into the unpolished pontil scar on the bottom in America. In the beginning a few Bohemian makers tried to line their pieces with a mercury solution, but they stopped using it due to expense and toxicity. However, this is where the name originated.

Companies in the United States, including the Boston and Sandwich Glass Company, New England Glass Company Union Glass Company, and the Boston Silver Glass Company, made silvered glass from about 1852 to 1880. The New England Glass Company displayed a variety of silvered glass articles, including copper wheel engraved goblets, vases and other tableware at the 1853 New Crystal Palace Exhibition.

Bohemian Mercury glassmakers decorated their pieces with a variety of techniques including painting, enameling, etching, and surface engraving. Antique historians believe it to be the first true "art glass"---glass made for display and for its artistic value rather than for everyday use.

The peak of Mercury glass’ popularity came in the mid-19th century. Back then, high-quality European and American-made pieces were lightweight, had graceful forms, and came decorated with acid-etched fruit or floral motifs, cut glass designs, and sometimes paint. Young girls, working on assembly lines, painted vases in particular with their own designs of swans, daisies, or leaves. Makers intended the details on their pieces to be equal to the finest decoration on other forms of glass and china.

After briefly falling out of favor, Mercury glass reappeared around 1900 in the form of Christmas ornaments and gazing balls, as well as blown fruits and flowers. Today, most serious collectors concentrate on antique forms, like curtain pins, salt cellars, or pedestal-footed silvered vases.

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The Whimsy of Murano Glass

QUESTION: My mother had this colorful little glass owl, and I had it sitting downstairs for many years on a shelf and had forgotten about it. Actually, I never liked it. But I knew nothing about it. I've tried and tried to find out about it online, but discovered nothing that would help me identify it. Do you know anything about it? Is it from the 1960s or 1970s?

ANSWER: Your owl vase comes from the Island of Murano in the Venetian Lagoon. While Murano glass has been made for several centuries, collecting antique pieces may be a bit over the budget of most people. However, pieces like this one from the 1960s are much more affordable and do pop up at flea markets from time to time.

Murano glass objects have gone up in price in recent years. Those items made in the 1950s are especially popular because of their reasonable prices. Typically, Murano pieces are low bowls and ashtrays with abstract shapes. Some are rounded or blobbed, kind of like an amoeba. Others have pointed "fingers" in the design which reach outward or up in many directions. A few stand higher, with fingers reaching upward to form a handle for a basket. There are also bud vases. All are have deep, vibrant colors, and all are heavy and have polished smooth bottoms.

Murano is a series of islands linked by bridges in the Veneto, or Venetian Lagoon, less than a mile north of Venice. Today, it has a population of over 5,000 and is famous for its glassmaking. This reputation as a center for glassmaking came about when the Venetian Republic, fearing fire and destruction of the city's mostly wooden buildings, ordered glassmakers to move their foundries to Murano in 1291. The glassmakers of Murano have specialized in fancy glasswares ever since.

They developed or refined many glassmaking technologies, including crystalline glass, smalto or enameled glass, goldstone or golden glass, mullefiori or multicolored filement glass, lattimo or milk glass, and imitation gemstones made of glass. Today, the artisans of Murano still use these centuries-old techniques, crafting everything from contemporary art glass and glass figurines to Murano glass chandeliers, as well as tourist souvenirs..

Murano glassmakers eventually became the island’s most prominent citizens. By the 14th century, glassmakers could wear swords, enjoyed immunity from prosecution by the Venetian state, and had permission for their daughters to marry into Venice’s most affluent families. But there was a downside. Glassmakers weren’t allowed to leave the Republic. Anyone caught exporting professional glasmaking secrets was put to death. Many craftsmen took this risk and set up glass furnaces in surrounding cities and as far afield as England and the Netherlands. By the end of the 16th century, three thousand of Murano island's seven thousand inhabitants were involved in some way in the glassmaking industry.

The late 19th century saw a resurgence in the art of glassmaking on Murano. By the turn of the 20th century, they only produced special pieces for La Biennale di Venezia, the Venice Biennale, an international art exhibition that began in 1895.

Following World War I, the glassmaking factories began normal production of non-traditional pieces. By the 1930s, they began producing pieces in the Art Deco style. This continued until the Biennale of 1942, at which the Murano glassmakers outdid themselves by exhibiting pieces in exciting shapes and colors that brought a lift to war-weary Venice.

Some of Murano's historical glass factories, including De Biasi, Gabbiani, Venini, Salviati, Barovier & Toso, Pauly, Berengo Studio, Seguso, Formia International, Murno Gladst, Simone Cenedese, Alessandro Mandruzzato, Vetreria Ducale, Estevan Rossetto 1950, remain well known brands today,. The oldest glass factory is Antica Vetreria Fratelli Toso, founded in 1854.

Overall, the Murano glass industry has been shrinking as demand has waned. Imitation works from Asia and Eastern Europe have stolen an estimated 40-45 percent of the market for Murano glass, and public tastes have changed while the designs in Murano have largely stayed the same. The difficult and low-paying nature of the work has decreased  the number of professional glassmakers in Murano from about 6000 in 1990 to fewer than 1000 today.

Today, about 50 companies use the Artistic Glass Murano® trademark of origin.  Regionale di Veneto Law Numero.70, passed in 1994, introduced this trademark and continues to regulate it. While glass factories on Murano aren’t required to apply for the trademark and many choose not to, works that bear it have their authenticity guaranteed.

One of the main characteristics of Murano glass is its bubble-free quality. By adding fluxes and stabilizers such as soda and lime to silica sand, glassmakers can melt the glass at a lower temperature, making the glass homogeneous and bubble free. While basic Murano glass is colorless, the addition of small amounts of minerals, oxides, and chemical derivatives to the base composition of the glass powder gives it its brilliant colors.

Today, the island of Murano is synonymous with glass. Everything imaginable is made from Murano glass: wine goblets, vases, candlestick holders, miniature animals, paperweights, chandeliers, lampshades, dinner services, tiny pieces of glass candy, beads, and every kind of jewelry you can imagine. There’s tremendous variety in quality, price, and style. When it’s quickly turned out for a cheap profit among the tourist trade, it can look hideous. When it’s well done, Murano glass is exquisitely beautiful.

To read more articles on antiques, please visit the Antiques Article section of my Web site.  And to stay up to the minute on antiques and collectibles, please join the other 24,000 readers by following my free online magazine, #TheAntiquesAlmanac. Learn more about vintage games in the 2019 Holiday Edition, "Games, Games, and More Games," online now. And to read daily posts about unique objects from the past and their histories, like the #Antiques and More Collection on Facebook.