Very nice Blue Bird. The typeface is really great.
The two words may have something to do with this: https://en.wikipedia.org/wiki/The_Blue_Bird_%28play%29
You might be on to something there, that seems like a possibility. After all, the Imperial Good Companion was named after a book.
Once again you have acquired a near-pristine machine for your collection. Good on ya for getting them onto the Typewriter Database - an inspiration for the rest of us.