Those are so cool! What a great find. Since this is a "generic thread," I have a little story for you. It's kind of the opposite of yours.
My grandmother and I always did sewing stuff together. Both she and my grandfather had worked in the garment district in LA most of their lives. Gramma had these huge shears that were used to cut men's trousers at the factory and she always told me that she wanted me to have them when she passed on. Well, sadly, one day she was gone and the shears ended up in the estate sale before I had a chance to get them.
Many years later, I was browsing in our local antique store in Solvang. There they were, the exact pair of shears that my Gramma had! I asked the owner where he picked them up and he said the Pasadena Rose Bowl. My Gramma lived in S. Pasadena! Of course, I bought them right away and I still have them today. ~ Cindy