I've owned this pair of vases for a lot of years because they are so unusual, and I like what is different and that is why I kept them so long. Moser designed some similar glass in the early 1900s that is striped in white opal and black, known as hard edged color planes. I refer you to the book "Loetz Bohemian Glass 1880 – 1940", by Jan Mergl, Ernst Ploil and Helmut Ricke for the Neue Galerie New York, pages159 to 160. The book is also sold under the title of "Lotz Bohemian Glass 1880 – 1940." The author says that this type of glass was not greeted with any enthusiasm, so it is interesting that a Bohemian glassmaker made a multi-layer version in blue and white.
The glass is highly reflective, so please forgive all of the light glares and my reflection showing (I should have dressed up to take the photos.) I tried hard on the photos, in different types of light, and this is the best I could do.
The vases are Bohemian and the bottom of each vase has the word "Czechoslovakia" that is slightly rounded. The date is circa 1910.
The vases are 4 ½" high and 4" wide at the belly. There is a slightly tapered foot, and generous round belly and a short mouth. The rim is polished flat.
There are three layers of glass, maybe four, and you will see what I mean if you look at the photos carefully. The inside layer is a bright blue. There is a middle white layer. The outside layer is blue, but with iridescence, so in daylight in a display case the outside layer can appear to be purple. Now look carefully. There are thin strips of white glass over the outside layer. If you look at the rim, you will see it is not the middle layer showing up because it is blue – white- blue – and then thin panels of white. Now look at the bottom and see how the blue and white carry through, not ending at the bottom but the strips going down the sides and continuing on the bottom and going up the other sides. Don't ask me how this was accomplished because I don't have a clue.
There are no chips, nicks or cracks. However there are a few glass making small imperfections that the photos don't show like small folds in the glass and a spot where the white glass isn't totally white.