Despite the deference to Expert opinion and to be printed with the emblem of the USSR, I right vase is very similar to Chinese ceramics in the mid 20th century.
And, of course, is not a "celadon, celadon as means green, and grey here ceramics, glazed in engineering crackle. And now a lot of these for sale..
In General, Chinese antique and vintage hunting and expensive to buy the Chinese themselves.
Things should go on their forums, just snap...