Detail from the previous Gaulish Mosaic posting . The symbol on the bottom left looks like a swastika.Source:
Inventaire de mosaique de la Gaule et de L'Afrique, Edition Leroux, Paris, 1922
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.
Detail from the previous Gaulish Mosaic posting . The symbol on the bottom left looks like a swastika.
Hexagram at the upper left corner of a Gaulish mosaic floor as one of few symbols. Usually researchers say that geometric symbols serve a decorative purpose, but IMHO they serve a religious purpose and I hope to prove it in the near future. 
A Star of David was discovered in the year 1927...The first archeological excavations began in the years 1922-1932 by a Danish expedition. The finds were placed in the Danish National Museum in Copenhagen…
Picture is courtesy of Israel Medad