Delft

Delft is a city in the Netherlands that is famous for its blue and white pottery, which is known as Delft Blue. The Royal Delft factory is the oldest and most famous Delft Blue pottery manufacturer in the world. It was founded in the 17th century.

In addition to the Royal Delft factory, there are a number of other Delft Blue pottery manufacturers in the Netherlands. However, the Royal Delft factory is the only one that is allowed to use the name "Delft" in its products.

Even though I had many Delftware porcelains, unfortunately, I gave up on identifying their marks.

You can find some marks.