Braathen Dendrokronologiska Undersökningar
Lunnevägen 2, SE-46144 Trollhättan, Sweden
S:a Maria church, Visby
S:a Maria the parish church and the cathedral. At a repair in the vestry medieval floor boards were removed. They were taken care of by a private person. Five of these boards are dated. One of these (no 526) is assumed to have waney edge and is dated 1202.