I found it at a design store in Zurich and caught my attention for the contrast of colors and textures achieved by the designer who treats the metal to combine the oxidized and original polished state of it. Each of the seven vases of the collection shows the original and oxidized color of a different metal and its available in seven sizes.
You can find them online and in design stores.
“Colouring metals requires accurate recipes. My new vases for &tradition show the results of research on metals and their true colours; a direct relationship between colour, material and information.” Lex Pott for &tradition