Looks like the regular symbols of a Masonic Lodge [1] so probably part of Free Masonry. I did work once for an affiliated organization and it was full of symbol

Looks like the regular symbols of a Masonic Lodge [1] so probably part of Free Masonry. I did work once for an affiliated organization and it was full of symbols and stuff like what you see there. 1: https://en.wikipedia.org/wiki/Masonic_lodge https://en.wikipedia.org/wiki/Masonic_lodge