EntityQ2142686· pop 16· linked from 79 articlesmason's markSign in to savesymbol often found on dressed stone in buildingsConnectionsNorwayCountryZurichEntityrockEntityInternational Standard Book NumberEntityWikisourceEntityTrierEntityTrondheimEntitysymbolEntityFreemasonryConceptdigital object identifierEntityJames VI and IPersonmasonryEntitytimber framingEntityPorta NigraEntityNidaros CathedralEntityQ22908627EntityguildEntityFountains AbbeyEntityEncyclopædia Britannica 11th editionEntityAthenryEntityCategoriesInscriptionsMasonic symbolismStonemasonrySymbols