It can help to use a magnifying glass to enlarge the stamp.You can also take a digital photo and then use your computer to enlarge the image.Before 1781 very few unmarked pieces can be correctly attributed to Wedgwood.There are also some interesting pieces around that are marked with USA Patent dates and details.However, many manufacturers made dozens, or even hundreds, of different patterns.To save time and avoid having to sift through the entire product catalog for your manufacturer, take note of some of the most important details in your pattern.
However, there are actually several different kinds of china, each of which uses a specific production process.
Since many manufacturers specialized in a single type of china, this can help narrow down the possibilities for your china pattern.
According to Collector's Weekly, there are three main types of porcelain, all of which are commonly called "china:" Most fine china features an identification mark that helps to identify the manufacturer of the piece.
An easy to use chronological list of Wedgwood marks to help the Wedgwood collector, who is faced with many imitators, to date genuine Wedgwood antiques.
Fortunately for the collector, Josiah Wedgwood was the first potter of note to mark his goods with his own name.