Around 1621 Simon Toenis van der Piet of Delft, bought up the Tile factory on the Schritsen ( corner of Raamstraat and Schritsen) in Harlingen, Friesland, originally established by Steffen Gunter the elder in 1598.
Simon's wife, Maritgen Jans dr. van der Laan signed a contract in 1637 with the tilemaker Adriaen Cornelis van Leeuwen from Delft, which required him to move as speedily as possible to Harlingen where he was to spend a year painting saucers and tiles for Van der Piet. The contract names prices as
follows:
'fijne schutters', 36 stuyvers per 100 stuks;
'slechte mannekes', 24 stuyvers per 100 stuks;
'slechte stien' (eenvoudige tegels), 16 stuyvers per 100 stuks;
'scheepjes of ruiters te paard', 2 gld. en 10 stuyvers per 100 stuks.
Van der Piet's pottery was not, however, a large concern. According to an inventory of 1639 there were 2000 unbaked tiles. It seems likely that, at that time, they were already usring red, yellow, green and deep yellow colouring for their tiles, the traditional Harlinger colours.
In 1681 the factory was take over by Pytter Pytterse Grauda and Jan Folekerts Grauda for 2200 gulden.