580/NA

Usually the more undecorated surface a Poole vase has, the less well it looks.  But the NA pattern on this distinctive Poole shape works perfectly with the "chimney" portion left white. 16.5cm tall, 580 is the largest of, I think, 3 similar shapes (through the numbers 850, 581 and 853, suggest there might be a fourth middle-sized one).  The vase was painted by Hilda Hampton between 1927 and 1934.

Here's a little bit more of the same pattern

With a more colourful version here