I've consulted 2 Dutch experts in art nouveau ceramics by email: both experts could not identify the maker of this vase. The suggestion is, that this might not be Dutch, but maybe German pottery. In the 1920's the Meissner pottery also had some modern designers at work. His idea is, that this could be an option, as the top mark shows some resemblance with a crude form of the two swords, the Meissner pottery mark. At least, when compared to these in the book he consulted: Dieter Z?hlsdorff, Keramik-Marken Lexikon 1885-1935, Stuttgart (Arnoldsche) 1994.
Is anyone famiiar with this type of German pottery?
Trudie