Magen David on the upper part of a Torah Ark from Frankfurt/Oder, Germany, dated 1811/12, made from wood, carved and painted.
It is very common to see Magen Davids on Torah Arks all around the world.
Photo is courtesy of "*Checco*' who published it on Flickr.
This blog (by Zeev Barkan) is dedicated to the Star of David, its history, its various meanings and usages in different cultures. It includes thousands of pictures of Star of David, six-pointed stars, hexagrams, Solomon's Seals, Magen Davids and yellow badges,and served as a resource for three books and four art exhibitions.