Imperial Porcelain

The Imperial Porcelain Factory (or Manufactory) (Russian: Императорский Фарфоровый Завод, Imperatorskii Farforovyi Zavod), is a producer of handpainted ceramics in Saint Petersburg, Russia. It was established by Dmitry Ivanovich Vinogradov in 1744. and was supported by the Romanov tsars since Empress Elizabeth. Many still refer to the factory by its well-known former name, Lomonosov Porcelain .
http://www.ipm.ru/
This one found #secondhand

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 — en San Petersburgo.