Jackson calls this “the Dome on the rock which, amongst others things, is said to contain the tomb of Solomon. The nearby Al Asqa Mosque is recorded as having been occupied during the crusades by the Knights Templars. The three inner entrances shown on the panel relate to the legend of the death of the Architect of Solomon’s Temple, Hiram Abiff.”
Cooper also sees the image as the Dome on the Rock, but the Dome is covering King Solomon’s Temple. Therefor the image depicts the site Holy for Jews (KST) and Muslims alike (Dome). Cooper also sees Hiram’s grave in the middle, on the black and white, Masonic floor.
If the Hiram Abiff clue is true, that would debunk the idea that the scroll is progressive in degrees as several degrees would then come between FC and MM. But isn’t a Mark lodge (to name an example) not a lodge of FCs afterall?
Day calls the image a “circular mausoleum” which might be linked to the Templar, he didn’t know an obvious Masonic connection.