eigen haard is goud waard...

source: Leeuwarder Courant of September 6, 1978
On the motorway from Balk to Koudum there is a row of pre-war houses that attract the attention of passers-by. When the sun shines on the roof, it is discovered that part of the roof tiles are glazed and that these tiles form letters. It takes some effort, but in the end those letters form these words: Own hearth is worth gold.