Czech glass - Zipper #4

This zipper I call the glossy zipper. It comes in only a few colors and shapes. The base color is white with shades of kelly green, Cobalt blue, pink and yellow. The colors are are applied to the base and spiraled (very precisely) around the piece before it is zigzagged with a mold or tool. The top vase has been attributed to Franz Welz by the Passau Glasmuseum- This makes sense because all the colors are similar to Welz (along with the white base color). No signatures have been discovered so I am open to suggestions.