An 'atomic' era art pottery dish by Dumler & Breiden, West Germany...
It's a rounded triangular shallow bowl shape, model no 1286-17. Circa 1950s-1960s vintage. Matt olive or moss green with a hand drawn white glossy spiral/spiderweb, with glossy dots of retro baby blue, pale pink and pale yellow at the intersections. Stamped on base with the model number and the Drumler & Breiden Hohr logo dating as an earlier 50s/60s dish.
Triangle is roughly 17 x 17cm and 3cm high. Great displayable and collectable condition with no chips and hardly any signs of age or use. 
Price includes P&P to the UK.