I also love to tell this story....
This was published in a VCCC newsletter several years ago.
I was walking through a antique show in a huge auditorium in Omaha, when I lived there. In a particular booth I see on one of the tables, a glass moth crystalizer for a GE or Premier.I do not remember anymore if it was the bigger or smaller one but both ends of the attachment were on the tube. Knowing what that was I was excited and went to look at it. The funny thing was that the woman who had it, had it marked as a powdered sugar shaker from the 30's. Holy cow! I thought, people do not always know what they have.
A few years later I happened to be looking through a book on glass collectibles and there on one of the pages were those two particular attachments. The large and the small moth crystalizer, and they just said they were a vacuum attachment. Not what they really were. It is strange sometimes what you can find.
David