Schmetterling
Image above from the Walther 1935 catalogue - courtesy Mr. Mauerhoff and Siegmar Gieselberger
Note this vase was "all matted" in 1935
Above, the Schmetterling Vase in the 1958 catalogue - courtesy Mr. Mauerhoff and Siegmar Gieselberger
The vase is part matt and part shiny.
Above from the 1965 Sachsenglas catalogue - courtesy Mr. Mauerhoff and Siegmar Gieselberger. The text can be read clearly. This vase is "partially matted".                            
Webpage Copyright G&S Thistlewood, 2006
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Conclusion
Based on the catalogue evidence:

The Schmetterling vase was made in the 1930s with an all over matt (frosted) treatment
The Schmetterling vase was made later, certainly in the 1960s, in a "partially matted" treatment (figure is matt rest of vase isn't)

An all matt treatment on Walther items is not, by itself, indicative of more recent production.
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1935
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