подсказываю.
http://www.porcelainmarksandmore.com/resou...story-notes.php
Instead of vanishing from sight, the 'FOREIGN' mark was actually used on and off ever since its introduction, with various countries either using it or allowing imports showing such a mark. For example, West German potteries during the early Mid-Century-Modern era actually marked 'Foreign' for export to countries like Hungary or Bulgaria (as Western goods were not taken very well behind the Iron Curtain) while the U.S. accepted 'FOREIGN' marked imports from the U.S.S.R. during the Cold War.
So the mere presence of a 'FOREIGN' mark says absolutely nothing about the age or the intended target market of an item, in fact these items require intensive research as to place them correctly. Don't let yourself be fooled by sellers that claim a certain age (or country of origin) based simply on the presence of this mark.
а теперь вы идете в гугл - переводчик.