Czechoslovakian uranium glass vase

You know how it is when you're looking for one thing and find something else? Well, this morning I was looking for one thing when I found a posting by bohemianglassandmore (link below, in comments) that reminded me of this something else.

This vase stands 9" (22.8 cm) tall with a diameter of just under 5" (12.3 cm) across the top. It is two layers of glass, a thin white inner layer cased with a slightly thicker transparent uranium green layer that becomes a transparent green foot. This foot is quite different from the foot on Warren's vase in other than the obvious way. Instead of a Kralik mark, this piece has a mark that looks to me like the mark often found on Welz pieces (only in a smaller font). What this says to me is that imitation was the norm among the Czechoslovakian interwar glasshouses.