- Makkum: From 1572 until september 2013 Royal Tichelaar Makkum concentrated on ornamental earthenware. Tichelaar Makkum used the age old majolica technique, in which local Frisian clay is covered with white tin glazing on which the decorations are painted, glazed again and fired on lower temperature. In my collection there are 4 Royal Tichelaar piggy banks. Nowadays only available in the webshop (see 'traditional') .
- Workum had a flourishing earthenware industry for over 300 years. Only one or two potters still produce. The last existing factory of De Boer was dismantled in 2007 when Rintje de Boer died. He was the last person of the family that kept the tradition of green lead glazed piggy banks alive.
- Harlingen/ Lemmer: Once an well-known places for earthenware.
Gouda: Most potteries which existed until the '60's were integrated in bigger firms or just vanished. The Gouda piggy bank had 4 legs, cross stripes on the body and a tail as a knot. It is green led glazed. Led glaze appears to be poisonous, so a EC regulation (± 1989) decided that this kind of glaze was forbidden. And a whole industry of ceramic household ware became extinct. Many Gouda piggy banks have a number that corresponds to a certain length. Unfortunately, there was no uniform system, all producers had their own numbers and sizes.
Delft is a type of faience with blue decoration, traditionally manufactured in Delft. Other types of Delftware are multicoloured or white. The industry was wiped out round 1800 by cheaper pottery, especially from England (Staffordshire). Today there are only two factories left (Royal Delft Pottery “De Porceleyne Fles” and Delft Pottery “De Delftse Pauw”) where 'real' Delftware is produced. Most of the Delftware sold today (even in Delft!) is Chinese or (if you are lucky) excellent Dutch imitations.