One of the main reasons for the big success of Loetz at the Paris World Exhibition in 1900 was the use of bright, colourful decorations later to be known as Phenomen Genres. In the last 10 years of the 1800s Loetz began experimenting with colourful and highly iridescent art glass. The technique of iridescent art glass was being used by Louis C. Tiffany and Lobmeyr and it is very likely that Loetz got their inspiration from these two sources. This vase bears one of the earliest Phenomen Decoration variants which has first been documented 1900. The smooth opal foundation along with the highly iridescent silver coloured feather decoration grants the vase a slender and highly elegant appearance.