Hyazint glass. Zwibelglass, low, with optics, Funen Glassworks about 1910, Denmark.

Hyazint glass. Zwibelglass, low, with optics, Funen Glassworks about 1910 Denmark. H .: 11.4 cm. Purchased at Fyn glass work catalog in 1924. One side is much thicker than the other, and there is a small chip. Really rare glass. Depicted in the book Danish Glass 1825 - 1925 Figure 466 on page 329, and the like glass in the book "Funen Glassworks", 1997. Figure 246, p. 203.