Dating antique china
In 1939, the United States imposed trade restrictions on Japan as a result of the Japanese aggressions in Asia.
(You will find nothing imported between 19.) Trade resumed in 1945 with the same "made in Japan" mark required but Japanese manufacturers found that "made in occupied japan" was an easier mark to sell to the Americans.
Printed marks incorporating the name of the pattern are after 1810.
Marks incorporating the word 'Limited,' or the abbreviations 'Ltd,' 'Ld,' etc., denote a date after 1861, and most examples are much later.
Make a list of each piece and write down all of the information you have about it. Stamped marks look like a stamp on the bottom of the piece, while impressed marks are cut into the pottery.
Many items were marked, of course, but they were "prestige" items - European china for example - where the manufacturer and importer thought the source was a favorable selling point.Once the requirement for foreign origins was imposed, many American manufacturers also began marking their items with some indication of source to take advantage of "Buy American" sentiment.In 1914, the law was revised and the phrase "Made in..." was required. There are numerous recent items that say only a country name without "made in..." Don't rely on that rule in dating items.Collect any information you have or stories you know about the pieces in question.If your grandfather brought the china from Portugal in 1920, for example, having that information will help you locate the maker and year. Marks come in several varieties: stamped marks, impressed marks, handwritten marks, and paper or sticker marks.