Vintage Indigenous art serving tray/display tray

Coast Salish design on this gorgeous tray, which has been used as a display tray. It is signed by the artist. Metal appears to be stainless steel - no tarnish in all the years I’ve had it - and it is a substantial piece, weighing almost 4 pounds. Measures 20” x 8”. Tray has some light scratches. This is a vintage and preloved piece so it is not without its flaws, but still stunning on a table or ledge. The dark shadows in the photos are reflections from my camera and me. The piece is actually quite shiny.