A super Thomas (a subsidiary of Rosenthal, West Germany) white porcelain 'op art' vase. The design was by Rosamonde Nairac and it's circa 1965 to 1977 vintage.
A tall slim cylinder vase with a 'Spargel' or asparagus relief design in a white bisque porcelain finish. It's bright white and glossy white inside. Mid-century modernist and minimalist and op art in style. 
Medium sized: 22cm tall x 5cm wide - the right size for daffodils, tulips etc if used as a vase. Stamped on the base with the Thomas logo, and indented with the model number which I can't read.
Very good condition. A harder to find design.
Free P&P via Royal Mail to the UK.