How do you identify Loetz glass?

Loetz “Titania” Art Nouveau Green Iridescent Glass Vase with Silver Overlay, Art Nouveau Loetz “Titania” Iridescent Green Glass Vase, Silver Overlay Deco...

Glass vase, manufactured by Johann Loetz Witwe, PG 1/214 decoration, ca. 1901, signed Art Nouveau, Jugendstil, Art Deco, art glass, iridescent glass, orange, blue, silver signed "Lo...

Dagobert Peche (1887-1923) - LOETZ - Antique Jugendstil clear cased red glass vase - rare form with hand painted black enamel floral sprigs alternating in two rows over the body - bl...

Stylish Bohemian Silberiris Candia iridescent glass vase with brown handles by Johann Loetz Witwe and dating from around 1900. The simply shaped vase ref PN 85/5151 in the Loetz cata...

A large Loetz Delphi pattern vase in green with a bulbus near spherical top with a large opening over a round base with a typical Loetz twist to the body. Finely iridised a classic L...

Antique Art Nouveau chalice shaped art glass vase created by the Loetz glassworks company, which was active during the late 19th and early 20th centuries, this vase represents a prime example of their artistic mastery. The vase features a cobalt blue ground that adds depth and richness to its overall appearance. Its surface showcases a captivating iridescent wave pattern, which adds a mesmerizing shimmer and dynamic quality to the glass. This iridescence is a hallmark of Loetz glassware and is achieved through the application of special techniques during the glassblowing process. The chalice-form of the vase gives it an elegant and graceful silhouette. This design creates a harmonious balance between the visually striking upper portion and the sturdy base. Loetz glasswares are renowned for their exceptional artistry and their ability to capture and play with light. The Phaenomen Genre 6893 vase, with its dark blue color and iridescent wave pattern, is no exception. When light interacts with the glass, it reveals a captivating range of colors and reflections, making it a visually stunning and attention-grabbing piece. As an antique Loetz glass vase...