Pottery Marks and What They Tell Us

Mark showing pottery name, factory,
country, date, and pattern.

QUESTION: I go antiquing with a long-time friend. Inevitably, whether we’re browsing the tables at a local fleamarket or browsing in an antique shop or show, he always picks up a piece of pottery or porcelain and turns it over to see the mark. What do these marks say about the pieces besides who possibly made them? And are there any other marks from the making of the piece and what do they tell him?

ANSWER: An experienced collector of pottery can tell a lot about a piece’s origin by reading the manufacturers' marks on the bottom of each piece. These marks tell the pottery's name, its location, its company symbol, and often the pattern name or the name given to the body shape of the piece. 

Stamped mark

But there may also be other, less obvious, marks that indicate the method of production or factory flaws that show the level of quality control used by the firm. Collectors familiar with these signs can quickly distinguish between factory flaws and more serious indicators of damage and wear inflicted upon that same piece once it has left the  factory. Knowing the difference allows the experienced collector to purchase pottery with confidence.

While most manufacturer’s marks, which may he printed, incised, impressed, stamped, or applied as paper labels, usually contain the pottery’s name, initials, symbol and location---or some combination of these—some are rather sparse and may only contain a letter within a geometric shape or a crest. 

In the case of the larger firms, a pottery mark also has publicity value and shows the buyer that  a long-established company with a reputation to uphold has made a piece. Such clear name- marks include Wedgwood, Minton, Royal Crown Derby, Royal Doulton, and Royal Worcester in Britain and Bennington, McCoy, and Hull in the U.S.

Though these marks are one of the best and easiest ways to identify ceramics, the shear number of them makes it impossible to every mark. Additionally, many small firms either saw no reason to use marks or sometimes used marks that haven’t been identified because of the short life span and limited production of the company.

Metal stamped mark into clay

To the collector a pottery mark can also identify the manufacturer and help establish the approximate date of manufacture and in several cases the exact year of production, particularly in the case of 19th and 20th century wares from the leading firms which employed private dating systems. With the increasing use of ceramic marks in the 19th century, a large proportion of English and American pottery and porcelain can be accurately identified and often dated.

Pottery’s added marks to their wares in several ways. They could incise them into the soft clay before the piece air dried, in which the mark will show a slight ploughed-up effect. Potters often do this to handmade pieces. Some manufacturers of quantity pieces, such as Wedgwood, impressed a mark into the soft clay using a metal or clay stamp or seal. 

Many pottery manufacturers used painted marks—usually containing their name or initial—added over the glaze at the time of decoration. Some used stencils.

Engraved transfer printed mark

Lastly, most 19th-century pottery makers used printed marks transferred from engraved copper plates at the time of decoration, often in blue under the glaze when the main design is also underglaze blue.

Pottery marks weren’t always universally used. In 1890, President William McKinley introduced the McKinley Tariff Act that imposed tariffs on many imports, including pottery, so that American manufacturers could more easily sell their products. The Act required that all such imports show the name of country of manufacture, such as “England,” “Germany,” “Nippon,” or “France.” In 1921, an amendment to the Act required that the phrase “Made in” precede the country of origin, such as “Made in England” or “Made in Japan.” However, some foreign companies began using the phrase as early as 1898. This is a great way for collectors to date foreign-made pieces.

Underglaze marks

Beginning pottery collectors often miss marks or flaws from manufacturing and instead focus only on the maker’s mark. These marks give clues to the quality of the ceramic bodies each maker used. Potteries used different firing techniques for different grades of ceramics and the distinctive marks each technique left behind, once known, help to establish the quality of a piece.

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The Ultimate in Elegance

QUESTION: What can you tell me about this plate? Is it collectible or ready for the dumpster.

ANSWER: If I were dumpster diving, I certainly would take a tumble for your plate. What you have is an authentic, hand-painted plate made in Limoges, France.

French Limoges is the name of delicate porcelain ware made in the Limousin region of France since the 18th century. It includes dinnerware, centerpieces, and the distinctive porcelain snuff and pill boxes that have become valuable collectors' items. The town of Limoges contains numerous factories that produced these wares, and, in fact, still do. The kaolin found in the rich soil in this French region is the vital element in the mix that makes up Limoges porcelain paste and gives it its delicate character.

Your particular type of plate, depending on its size, could be a case plate or a charger. Victorians loved to collect things and during the late 19th century, decorative display cases placed in the dining room, later to be commonly known as “china closets,” held various porcelain wares. Small hand-painted plates, usually from 7-8 inches in diameter, became a popular item to display in these cases. Housewives also displayed their best china in these cases.

Chargers, on the other hand, are larger decorative plates that a hostess would put at each place setting. Servants would take these away and replace them with plates of food. In French dining service, there should always be a plate in front of the person dining, whether full or not. So between each course, the serve would set the charger in front of the guest or family member.

Your plate has all the marks of authentic Limoges china. The McKinley Tariff Law went into effect in 1891, so all imported goods after that time had to be marked with the name of the country of origin. All Limoges items lacking the word "France" were made before 1891.

First, it has the maker's mark (partially obscured) in green on the bottom of the piece. This identifies the specific factory in Limoges that cast and fired your plate. This mark was impressed into the porcelain under the glaze at the point when the porcelain was still blank or "whiteware." Sometimes the mark just says "Limoges France," but in this case it seems to bear the name of Magnac-Bourg Limoges. Some marks incorporate a symbol such as a bird or a butterfly, but in this case it’s star with the word “Limoges” set into it.

The decorator's mark appears on the front of the plate. It seems to read “F. Faure.” While one of the presidents of France was named Felix Faure, there isn’t any evidence that he was a lowly plate decorator before winning that high office. The signature in this case is handwritten. Many Limoges pieces say "Peint Main," which stood for hand painted, on the back.

The mark on the back of your plate that is the clearest is that of the importer. In this case LS &S stands for Lazarus Strauss & Sons of New York, founded in 1869. The company imported chinaware from various countries in Europe, including Britain, France, and Germany and Czechoslovakia. In 1874, his son Nathan, got RH Macy to permitted them to have a glass and chinaware department in their store, making LS & S wares the first china and glassware to be sold by Macy’s. And while LS & S imported china, they also operated factories in the leading china making centers in the above countries.

Today, case plates and chargers made in Limoges, France, sell for $25 and up, depending on their age. Sets of 6 sell for much more.

Taking the Mystery Out of Identifying Antiques

QUESTION: I have what I believe to be an English ceramic plate with a mark that looks like a diamond with a bunch of letters and numbers in it. Can you tell me what that means?

ANSWER: The stamp on the back of your plate is known as a mark. Manufacturers of English pottery used this particular design between 1842 and 1883. The letters and numbers indicate the dates of the plate’s design registration with the British patent office. You can easily decipher this alpha-numeric code by checking the chart found on the Phoenix Masonry Web site or in Kovels' New Dictionary of Marks--Pottery & Porcelain: 1850 to the Present by Ralph and Terry Kovel (Crown Publishers, New York).

Pottery makers replaced this diamond-shaped registry mark with a sequential numbering system prefaced by the abbreviation Rd. No.  in 1884. Over the years, they modified the arrangement of the numbers several times, so it can be confusing. If you need specific information, you can contact the British Designs Registry Patent Office for dates registered in and after 1909 and the British Public Record Office for dates registered prior to 1909.

Sometimes, pottery and porcelain makers used word indications that spelled out the date. If the mark shows the country of origin, this means the piece dates after 1891, according to the U.S.  McKinley Tariff Law.

Often manufacturers worldwide employed words to describe their wares. These usually had start and end dates, making it easy to figure out the approximate date of a piece. For instance, the term "Nippon,” the Japanese name for Japan, indicates that piece of Japanese porcelain dates from 1891 to 1921while "Made in Occupied Japan" shows that the piece dates from  1945 to 1952. "Semi-vitreous" means the piece appeared on the market after 1901 while "bone china" indicates that the piece dates generally from the 20th century.  The phrase "oven-proof' appeared on pottery and china after 1933, but "dishwasher proof ” didn’t appear until after 1955. Sometimes a location, such as "East Germany" can indicate a time period, which in this case extends from 1949 to1990.

If a piece of pottery or porcelain has a mark showing a design and/or maker’s name, this information may also help to date it. You’ll find loads of resources, both in print and online, to help you identify early English, European, and Asian pottery and porcelain marks.

In the United States, makers stamped patent numbers on the backs and bottoms of their pottery pieces. A patent number represents the very earliest an article could have been produced. For example, a patent number of 16,388 indicates the piece appeared after Jan. 1, 1857 but prior to Jan. 1, 1858. Therefore, it dates from 1857, the year of its patent registration. Should you discover several sequential patent number sets on one piece, you should look up the final set on a patent date chart to date the piece.

Marks on furniture, glass, and silver are another story. When a maker uses his name or logo, you may have enough information to track the date of manufacture. Often during the course of the run of a piece, the maker will use different names. This is true of Tiffany glass. On some pieces, Tiffany signed, that is incised, his name “Louis C. Tiffany.” On later pieces, “Tiffany Studios” appears on the piece, and yet others show no mark at all.

Early furniture makers often scratched their name on the bottom of a piece, such as under the seat of a chair. But by the early 20th century, almost all manufacturers used labels affixed to the backs or bottoms of their pieces. If a piece of furniture has a label, it surely indicates that the piece is modern. Gustav Stickley employed a red decal featuring his logo, a joiner's compass, from 1902 to 1903 as compared to the revised decals Stickley used between 1903 and 1912.