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"VIEW MORE PHOTOS      PointClickHome&amp;#039;s Auction Partner       A manufacturer&amp;#039;s stamp is like a thumbprint on china. Without the proper tools it can be just as cryptic. Since the inception of printed marks in 1801, stamp information has typically contained the names of the pattern, decoration, and manufacturer\u2014but the way it is written is the key to dating a ceramic. Every manufacturer has its own stamp, so it is easy to get flustered by all the variations, but fear not. Decorative art historian, Jeffery B. Snyder, has come to help us simplify! He has written books on the topic and helps us narrow china dates down with one easy term sheet. Whether you are looking to decode your mother&amp;#039;s china or improve your flea market appraisals, here is the beginner&amp;#039;s guide to dating china.What to look for To date ceramics, look for these key words or symbols in a manufacturer&amp;#039;s stamp. (Terms and symbols are in chronological order.)  Coat of Arms were put on English ceramics after 1810. Published by is seen on china between the years 1830-1940. Its occurrence was due to the 1797 Sculpture Copyright act. Diamond-shaped mark means that a design or process was registered with the state{should this be country?} of England between1842-1883. Royal in a manufacturer&amp;#039;s trade name was used on many English marks after 1850. Copyright means the piece was registered in the United States after 1859 (but is more commonly seen on 20th century pieces). Trademark on English pieces refers to the Trademark Act of 1862 and in the U.S. it refers to a law passed in 1875. If you know where the piece is from, this will help you further specify the years a piece could have been made. England means the china was made in England after 1880 for export. Registration Numbers appear after 1884. These replace the diamond-shaped mark registration system. Made in started in 1887 and continues to be used. English law required &amp;quot;made in&amp;quot; on all wares imported to their country. Enough companies wanted to have their products go to England, so most manufacturers complied. Under glaze is a pottery term printed from roughly 1903-1945. It simply means that the design is applied under the glaze. Microwave safe means it was made in the 1970s or later so don&amp;#039;t let anyone fool you into thinking that something with this marking is an antique.  What to know  Dating ceramics is a cumulative exercise, combining marks, company codes, registration marks or numbers, and marks from the country of origin, along with the ceramic body shape and decoration. All these things can help narrow the date somewhat, yet may never give you an ironclad single year final date. But with these key words and pointers, you can give a date range with confidence. "^^<http://www.w3.org/2001/XMLSchema#string>
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