Delftware, or Delft pottery, denotes blue and white pottery made in and around Delft in the Netherlands and the tin-glazed pottery made in the Netherlands from the 16th century.
Delftware in the latter sense is a type of pottery in which a white glaze is applied, usually decorated with metal oxides. Delftware includes pottery objects of all descriptions such as plates, vases, ornaments and tiles.
The use of marl, a type of clay rich in calcium compounds, allowed the Dutch potters to refine their technique and to make finer items. The usual clay body of Delftware was a blend of three clays, one local, one from Tournai and one from the Rhineland.
From about 1615, the potters began to coat their pots completely in white tin glaze instead of covering only the painting surface and coating the rest with clear ceramic glaze. They then began to cover the tin-glaze with clear glaze, which gave depth to the fired surface and smoothness to cobalt blues, ultimately creating a good resemblance to porcelain.
Item Description / Dealer Expertise
Dutch delft blue and white vase, late 17th century, decorated with scrolling flowers, underglaze blue mark GK 'Three porcelain Ash barrels' factory under Gerrit Pietersz Kam. 1685 - 1700
Interestingly, this vase has strong Iznik qualities in the sparing use of elongated foliage. The fine quality of the blue cobalt underglaze is evident in the richness of colour and its subtle variation. A unusual example of early Dutch delft.