I went to look at a box of insulators near where my husband's parents lived while he was in high school and college. The item that drew me to the collection was what I hoped to be (and turned out to be) a Wormser bullet in the picture of the Facebook post (that another collector alerted me to...thanks Fred!).

As I was going through the box I pulled out this little keyed mine spool, and was really surprised to see a Westinghouse mark on it. I've never seen another one. But I did find it in my 1920 Westinghouse catalog. This is another great addition to my collection.