In Weyl's "Algebraic Theory of Numbers", which was written in 1940, there are many symbols that look handwritten, such as Fraktur (or Sütterlin, whatever you want to call it) letters for ideals. His symbol for the rational numbers looks to me like something else entirely. You can see it a few times at the start of Chapter IV:
What is that symbol?!? I suppose it should be a letter, but when I look online at samples of handwritten Fraktur nothing resembles what Weyl is writing for rational numbers. I thought maybe it could be a lower-case q, but the way it curves on the bottom is going the wrong way for it to be a convincing q.