Hello Nick, Thank you for the pictures and the additional information
your piece is called a Water ewer pitcher. It was made during the years 1871- 1885 I would say this was made on the early end of the 1870’s time they used the mark G&S. This was made by the then called Grove and Stark Longton Pottery company of Stoke on Trent pottery district in Staffordshire, England. Here is the history for you of the company that made it; http://www.thepotteries.org/works/longton/palissy.htm
It was at this time the English pottery companies located in the Stoke on Trent pottery districts were imitating what was popular and that was pieces coming out of the Orient from China and Japan. Yours is a replica of a piece coming from Japan out of the Satsuma pottery district that is located here;
They even went to the trouble to put the Japanese family clan mark of a cross in a circle on it to fool people into thinking it was a piece of pottery from Japan notice it is at the top of this seal of the Japan family clan of pottery makers located in Satsuma called the Shimazu;
The technique of applying what is called Moriage in japan of dotted jeweled beaded enamel is a Japanese technique idea that the Europeans stole from the Japanese and started using as it became popular the vessel ewer design is a European one the Japanese in turn started coping the European style handles and did the same thing to sell as exports to Europe in the late 1800’s to compete. Here is a link showing different styles of porcelain pottery from Japan around the same time period called Moriage for you to see. Nippon translates into Japan in the English language.
Your ewer is made of jeweled beaded enamel on Hard Paste porcelain in an oriental style design. Your antique ewer water pitcher pottery piece made by Grove & Stark circa the 1870’s with heavy jeweled beaded enameling has a market value of 245 – 368 GBP. For insurance replacement purposes I would place a value of; 535 GBP on it.
Please copy and paste the links the site is acting up and I cannot post live links at this time.
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