Gouda vases with a white or creamy background:
The photo above shows some matte glazed designs from between 1915
and 1920.
The white/creamy colored vases you sometimes find were manufactured from
the early 1900's to about 1920.
At first these were made as high glazed designs, but from around
1915 also matt glazed designs were introduced.
The style used to paint the designs was inspired by the thin eggshell
porcelain produced those days by the Rozenburg Factory.
Eggshell porcelain became so thin that you could literally see through the
items that were made.
The Pottery produced was of course not as thin, but they tried to produce
designs that looked somewhat translucent. They used pastel colors and used
hatching (the technique of creating a pattern by drawing lines closely
together) to give the illusion of shade and depth to the designs.
The early high glazed designs sometimes had the reference P or NP written
on them. (Porcelain or New Porcelain.)
From 1918 the matte designs were finally given decor names. MB was used
for "Matte Bloemen" = Matte flowers, and MV was used for "Matte Vogel" =
Matte Bird.
This type of design was discontinued around 1920. It was probably too
labour intensive to make.
The main characteristic of this type of pottery is that its design appears
very thin and translucent. A bit more about high glaze and the NP
decor can be found
HERE.
Similar looking vases were again painted at a much later date, but at that
stage they lacked the detail provided in the 1920's. Click
HERE
for an example.