Jewels of the Eklektischen Bund (a German Grand Lodge). On top in the middle, two entangled letters S.
In the 11th degree of Mirecourt (“Grand Ecossais de Montpellier”) there is a question what “the two letters S” on the tracing board mean (unfortunately there is no images), the answer is: “Sanctus Sanctorum, or Sapientia or Solomon”.
frequently reproduced image (can even be sold as poster). I have not been able from what book this is a page.