Hi Leslie - all three of your vases are attractive, thought it's a shame they rarely attract serious interest, and believe your suggestion of eastern Europe would be the correct origin for all of them. In the U.K. these vases were often common at boot fairs, charity shops and the like, within the last twenty years or so but I suspect less so now, perhaps they travelled under the guise of tourist and holiday mementoes, in addition to commercial imports.
If you ever get the chance to look in Silber & Fleming's glass and china catalogue books, you will see that similar wares were prolific in the 1880s - and a lot of their glass is known to have originated in eastern Europe.
Unfortunately, dating is very imprecise, and as a generic group they might be anywhere from 1860 to 1940s - wear might just possibly be an indicator of more or less years, but vases are notorious for being moved around and collecting scratches. There might be recognized indicators for a more precise dating methodology, but if there is then I'm unaware of it - perhaps others here might have a better idea of dating. Occasionally, the decorator will have left a model or pattern No. on the base, and sometimes the give away as to their Continental origin will be the cross on the figure seven and the slightly unusual style of font.
Some degree of uranium content is common with these things, but the enamell painting is often of a high quality - they're cheerful and if you wanted an attractive vase I think you could do a lot worse.