Kralik Iridescent Art Glass Inkwell

That is a stunning example of Art Nouveau glass. This classic “Veined” or “Webbed” décor was a hallmark of several Bohemian glasshouses at the turn of the 20th century.

Identifying the Maker: Kralik vs. Loetz

While both firms produced iridescent glass with pulled webbing, the “O.E.P. 10385” and “D.R.G.M. 168180” marks are definitive clues.

• The Patent Mark: The D.R.G.M. 168180 is a known design registry number frequently associated with Wilhelm Kralik Sohn. While Loetz is often the first name people think of for Bohemian glass, Kralik produced a vast array of these “cracked” or “veined” iridescent inkwells.
• The Difference: Loetz glass tends to have a more refined, oily “sheen” with very smooth transitions between colors. Kralik’s “Veined” décor (often called Bacillus or Martelé in certain variations) typically features a more textured, “crackle” effect where the metallic webbing feels physically raised or deeply recessed against the glass body, as seen in your photos.

Glass Aesthetics: Color and Webbing

The glass body is a deep cobalt blue base, heavily saturated with metallic oxides to create a vibrant iridescence.

• Visual Effect: The surface mimics the look of peacock feathers or oil on water. The “web effect” creates a network of golden-bronze lines that “trap” the blue and green iridescent flecks, giving the piece a sense of organic movement—almost like a frozen liquid or a biological cell structure.
• Iridescence: This is a Favrile-style or “Lustre” finish, where the glass reflects light in a metallic, multi-colored spectrum including violet, gold, and emerald.

The Technical Process

Achieving this “webbed” look required a multi-step hot-glass technique:

1. The Base: A gather of molten cobalt blue glass was blown into a basic shape.
2. The Veining: While the glass was still red-hot, it was wrapped with thin strands of “glass thread” or dipped into a different colored frit.
3. Expansion & Crackle: The piece was then re-heated and blown further. As the glass expanded, the outer “web” layer would stretch and break apart (or “crackle”), creating the distinct network of lines.
4. Fuming: To get the metallic shine, the hot glass was exposed to metallic vapors (like stannous chloride or silver nitrate) in a reduction kiln. These vapors bonded to the surface, creating the thin, shimmering metallic film.

The Lid: Design and Markings

The lid is a beautiful example of Jugendstil (the German/Austrian Art Nouveau) metalwork.

• Stylized Design: Rather than a simple leaf, this is often interpreted as a stylized bud or a closed lotus. The vertical, slightly curved repoussé lines give it a ribbed, organic feel that complements the “veined” glass.
• Markings:
  • O.E.P. 10385: Österreichisches Patent (Austrian Patent). This specific patent often refers to the hinge mechanism or the airtight seal design of the inkwell lid.
  • D.R.G.M. 168180: This stands for Deutsches Reichs-Gebrauchsmuster. It was a way for manufacturers to protect a “utility model” or a design for 3–6 years without the full cost of a patent. This specific number is a known “Kralik” identifier.