Watcher 13 is a Unique by Bertil Vallien, Kosta Boda. A unique by the glass artist Bertil Vallien for Kosta Boda. The sculpture is 88 cm in height and stands on a wooden podium of 125 cm so the total height is 213 cm. The Watcher 13 sculpture is sand cast and engraving signed by Bertil Vallien, Kosta Boda.