From Stamps of the World
Sumar (Dutch: Suameer) is a village in the municipality of Tytsjerksteradiel, in the province of Friesland, the Netherlands. It lies south of Burgum, on the Provinciale weg 356, and had a population of approximately 1,382 in January 2017. There is a windmill in the village, De Hoop.
Read more @ https://en.wikipedia.org/wiki/Sumar,_Netherlands