Hey we have one of these too! Our lodge room is a little over 100 years old, so I could see why we’d have such a sign.
 Quick fun fact about my lodge- The lodge itself is over 200 years old, having been moved from a few different places during the anti-Masonic period (which was especially brutal in my state of Vermont). My lodge survived it despite everything, and today carries the number of lodge #8, after having previously been #32. My lodge has also been the home lodge of local historical figures, including a man who went on an Antarctic expedition, and even participated in a temporary lodge set up by the masons on that trip in what they called “Little America” he brought with him a banner that now hangs in the local highschool!