The Shimmer of Marble Glass

QUESTION: I was browsing at a flea market recently and discovered a beautiful green glass vase that looked like marble. The dealer didn’t know anything about it and said she had picked it up at a garage sale. I’ve never seen anything like it. It had veins like marble and shimmered in the sunlight. I had to have it. And now that I do, I’d love to know more about it. Can you tell my anything about this marble glass? How old is it and where was it made?

ANSWER: It’s seems that you’ve purchased what’s commonly known as “malachite” glass. The mineral malachite is a green copper carbonate stone which occurs naturally and has concentric layers. It’s especially prevalent in Russia and was a favorite of the czars. The inventors of malachite glass intended it to simulate marble. Many 19th-century glassworks used the term and each created their own variation on this theme. Those items made of this type of glass from the former Czechoslovakia go by another name—Ingrid.

Ingrid is the name of a series of artistic pressed glass items created by Henry Schlevogt and named for his daughter. Henry was the son of Curt Schlevogt, who around 1900 founded a firm in Jablonec, Bohemia, to produce glass beads and buttons. His wife, Charlotte, was the daughter of Heinrich Hoffmann, the owner of a glass company that made and exported sculptures, beads and hollowware.

But Henry knew that the "beads and buttons" business was a difficult one because of the tough competition from so many companies in the area and from other countries. He wrote to his daughter, Ingrid, that knowledge he gained in other countries had led him to create items that were so beautiful that the price wouldn’t matter.

At the Spring Trade Fair in Leipzig in 1934, Schlevogt introduced a line of ornamental crystal sculptures, and the same year presented the line at the Chicago World's Fair. The Ingrid brand was born. And while it was Curt Schlevogt who designed most of the molds used to make the glass, it was Henry who knew how to promote their new line of glass. Ingrid was so well received at the Fair that the firm began producing it on a large scale.

Schlevogt reached out to designers working with the Wiener Werkstatte, including Franz Hagenauer, Ena Rottenberg, and Vally Wieselthier, and also to designers who worked for other major glass firms, such as Bruno Mauder, Eleon von Rommel, and Alexander Pfohl. The result was a complete line of ornamental sculptures, perfumes with figural daubers and/or impressed stoppers, liquor sets, toilet sets, devotional items, figurines, table ware, and vases.

Henry Schlevogt utilized the technology at the Riedel glassworks in Polubny, Czechoslovakia, to make this artistic, marbled, pressed glass. But just because his firm pressed the glass into molds, didn’t mean that it was of inferior quality. The glass, itself, was pure. Workers ground out the mold marks and frosted or polished the surfaces. They even engraved some of the details.

The most common items are those made of jade green and lapis blue marbled glass. The company’s 1939 catalog shows more than 200 crystal and another 80 jade/lapis items.

Schlevogt's crystal perfumes aren’t as easily identified. Some appear in the firm's catalogs, but the vast majority have been included in the broad category of Czechoslovakian glass in most listings. The designs for perfumes included bottles in various Art Deco shapes, and stoppers with relief-pressed nudes, couples, flowers, and butterflies.

By 1936, Schlevogt had business representatives in several European cities. When the Czechoslovak pavilion won a Grand Prize at the 1937 Paris World's Fair, Schlevogt's ornamental sculptures by Ena Rottenberg and Josef Bernhard were part of the reason. By 1940, the Schlevogt firm owned more than 1,300 glass molds, coin molds, and hand presses. It had its own cutting, sandblasting, and acid-etching workshops, but continued to have the glass shapes pressed at the Riedel firm.

The Czechoslovak government nationalized the glass industry after World War II and sentenced Henry Schlevogt to prison in Siberia. After his release in 1948, the Communist government in Czechoslovakia t banished him. He first went to Austria, then accepted an offer to manage the glassworks in Romilly-sur-Andelle, France. He sold this firm in 1972 and died in Paris in 1984.

Collectors need to be cautious, however, since the Ingrid molds have been used continuously. In addition, unauthorized versions of Ingrid items have been made from reverse-engineered molds.

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The King of Glass

QUESTION: I have a beautiful green glass cordial set that belonged to my great grandmother. It’s been passed down to me. I just love this set and would like to know more about it. I was told that it was made by the Moser Glass Company in Czechslovakia. What can you tell me about it?

ANSWER: It’s difficult to tell if your cordial set is in fact made by Moser. It’s definitely in its style but other company copied it. Moser was one of the only Bohemian glass companies to sign some of their works. Usually the signature is in gold enamel somewhere on the piece, but many pieces remained unsigned.

Of all the Bohemian glassmakers of the 19th century, Ludwig Moser, known as the “King of Glass,” is probably the most famous. The company was well known for its heavy and intricate gold enameling. But Moser wasn’t the only glass decorator to adorn blanks with this type of decoration. Glassmakers copied each other in an effort to get their share of the market. Like many Bohemian firms, Moser sold blanks to other companies for decoration and decorated blanks bought from other companies, such as  Loetz, Meyr's Neffe and Harrachov, so it can be difficult to tell if Moser indeed made a particular piece.
                   
Ludwig Moser was born in 1833 and began his apprenticeship in the glass business at age 14. From there, he became a skilled engraver. In 1870, he opened a refinery in Karlsbad, Bohemia, today Karlovy Gary in the Czech Republic, and employed other glass cutters and engravers who decorated glass blanks purchased from other companies. The firm's work earned Moser international recognition for his engraved drinking glasses.

By 1880, Moser was making the intricately enameled glass that’s most often associated with him. He designed them for the Oriental market, intending them to resemble the work of Arabian goldsmiths. In 1893, he took over a glassworks factory in Meierhofen bei Karlsbad, employing 400 workers, under the name of Karlsbaderglasindustrie Gesellschaft Ludwig Moser & Söhne and where his sons Gustav and Rudolf also worked. Here he produced shaded transparent engraved glass. Within a short time Moser’s company gained the reputation as the most prestigious producer of crystal in the Austrian-Hungarian Empire.

Because of the excellent quality of his work, Emperor Franz Joseph I appointed Moser as the exclusive supplier of glass to the royal family. He won numerous awards at the World Exhibitions in Paris in 1879, 1889 and 1900, and the World Exhibition in Chicago in 1893.

The firm also introduced pieces with applied glass flowers and fruits. These remained popular through the 1920s and marked Moser's departure from the intricately enameled luxury glass he had made earlier. By 1922, Moser Glass became the largest producer of luxurious drinking and decorative glass in Czechoslovakia. Moser's son, Leo, who had taken over the firm upon the death of his father in 1916, sold the firm in 1938. When the Communists took over Czechoslovakia, the government took over the Moser glass works but continued to use its name.

Moser glassware commands top prices, so collectors need to know their glassware or purchase pieces from reputable dealers to avoid paying top dollar for similar work by a less famous firm. Cups and saucers run about $300 a set, with larger pieces or those with unusual forms hovering around $2,000.

Prices for Moser engraved glass run about the same. Amethyst or green en-graved miniature rose bowls run around $275 to $350. Larger, more detailed pieces command more money. An amethyst intaglio engraved perfume and stopper runs about $650, a covered box about $800, and a tray about $500. Vases run $600 to $1,000 and up, depending on size and design. Green and crystal enameled pieces, which date anywhere from the late 19th to the early 20th centuries sell for under $200.