From “Rooted in Tradition,” an exhibition presented by the Scottish Rite Masonic Museum and Library:
Since Freemasonry’s early days in England, the apron has been a part of the group’s distinctive symbols and rituals. Aprons evoke the symbolic association of Freemasonry with working stonemasons, craftsmen who wore aprons to protect their clothing from wear and dust. Decorated aprons may have emerged as a way for non-working, or symbolic, Freemasons to distinguish themselves from working, also called operative, stonemasons and/or other artisans.
Visit the full exhibition online: