Okay thank you for posting it. I might have missed it but how did you come about it? It seems obvious that it wasn't a metal detecting find but I've been wrong before.
If I was going to purchase the badge as a collector I would ponder this:
As my mind thinks anyone interested in fire department memorabilia back when the manufacturer was still producing badges could have ordered it. And now decades latter we are trying to find information that doesn't have a documented history. So without a trail to verify the fire company the badge could be an authentic novelty badge designed by request from a company that specialized in Masonic badges (agged silver). That is all, very nice badge none the less, CoNgRaTs.
for novelty badges by request if I am reading it right it is saying that they will make a piece of jewelry of the design of your badge not an actual badge correct me if I'm wrong
