A classic piece Michael. I have tried to find my vase with CMS BMG acid etched on a flat polished base, but it is hiding from me!! That vase is quite heavy for its size and is cased in clear, with large bubbles stained with blue. M. Velsikova was highly regarded when she was working in glass. As with F. Zemek, the efforts of modern researchers have returned some fame to deserving people, who for various reasons left glass-making before 1970 and therefore do not appear at all in some books on post war Czech glass. Staying alive and participating, ensures continuation of fame to some degree. M. Velsikova was essential to early Skrdlovice and this is a lovely design. In the pattern book, the text in Czech, describes this exact colourway and the fact it appeared in two sizes.
I also have the 8cm version in plain slightly blue antique style "pulegoso" glass. I think Mark Hill still has one of these in white on his website in the glass shop section. (Interestingly, Craig Orkney has discovered from Kusak glass in Seattle, that the antique style glass from Beranek was originally marketed in Seattle in circa 1945-1950 as "Pompeian".)
Because this piece of your has a polished pontil not flat polished like the CMS BMG vase I have, coupled with the fact the colourway appears in the pattern book, it seems to be it is probably early Skrdlovice production. Although the addition of coloured chips is rare in early Skrdlovice, I have one piece with it. Because of the scarcity of materials, any variation away from plain antique style pulegoso during this period, is significantly more rare. A Great piece,
Robert (bOBA)