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description: Dating > Dating pottery marks
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# Dating pottery marks

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Winart Pottery Winart Pottery was made in Miami, Oklahoma, from 1951 until about 1972. This company made yellow ware and hand painted dinnerware similar to. After Simon Kwan's exhibition of 20th century high quality porcelain even late pieces were immitated and this might be one of them. Mid 19th century to possibly early 20th century.\
&#x20;![dating pottery marks](http://gaukartifact.com/wp-content/uploads/2013/03/screenshot_457.jpg)\


Calla Lily dinnerware was a San Jose Potteries product. These labels were generally elements to the consumer. This 'Het Hert' mark can also be seen in an early version from about 1910 -15. Often found with drip glazes during the mid-century modern era, this company produced ashtrays, cookie jars, vases and a few figurines. It has been produced from the 1368—1644 to the social day. Left - green stamped mark with model number 2970. Zhou Jun Song artist name Zhi Made.

Mosaic Tile Company Mosaic Tile Company was started before the turn of the 20th century in Zanesville, Ohio, and operated until 1967. This is the only published case where Brush-McCoy included its name in a permanent mark.\
&#x20;![dating pottery marks](https://s-media-cache-ak0.pinimg.com/originals/f4/f2/35/f4f235c0737740091bc293db1684e85e.jpg)\


**Rookwood Pottery** - Caliente Pottery Caliente Pottery was the name used by Virgil Haldeman for his pottery produced in Burbank, California at the Haldeman Pottery.\
&#x20;![dating pottery marks](https://s-media-cache-ak0.pinimg.com/736x/3e/b8/86/3eb8867af7fac96919d8191bfaf4e9db.jpg)\


The diamond-shaped English Registry mark, was used by the English patent office since 1842 to identify pieces of English pottery, porcelain, and other products. It is easy to tell when the ceramic was made. Between 1842 and 1883, the diamond-shaped mark was used. Marks registered from 1842 to 1867 have a letter at the top of the diamond. Marks registered from 1867 to 1883 have a number instead of a letter at the top of the diamond. Tables listed here tell how to decode the mark to learn the type of material, month, maker, and year of manufacture. To obtain more detailed information, contact one of the following offices or visit their websites: For pieces registered before 1909: For pieces registered after 1909: Advice and Records Knowledge The National Archives Ruskin Avenue Kew, Richmond Richmond Surrey IW9 4DU, UK Intellectual Property Office Concept House Cardiff Road Newport South Wales NP10 8QQ, UK This email address is being protected from spambots. You need JavaScript enabled to view it. Both offices will research designs for a fee. Information is available on their websites. Here are some notes to help date any piece that bears an English registry mark. A diamond-shaped registry mark was used between 1842 and 1883. The information within the diamond changed after 1867. After 1884, the diamond-shaped marks were replaced by the letters Rd. In other words, this mark appeared on a piece of ceramics registered on July 7, 1873. This mark appears on decorative art china, glass, metal, or wood manufactured in England since 1884. Table 5: Design Registry Numbers—1884-2009 lists the English registry numbers by year. For example, if a piece is marked with the number Rd.
