The bike is essentially original and in very good shape. I don't know if the bulb horn was stock on a Galaxy, somehow I think that was added!
Here you can see the older-style Dawes torch headbadge (which my mother's bike also sports), and the Galaxy's original fork. I adore the gold swirling edge on that badge. My lugs are more elaborate, but I have a similar headset (and need to replace it).
A cute, cheerful vintage bike for sure!