Theory ➡️ “From what we know, bolo ties are exclusively worn by high commanding military officers (Pixis, Nile, Erwin, Darius etc.) Although thanks to Ch69 we see all of Levi’s squad wearing bolo ties during Historia’s coronation (for reasons that are still unexplained), we can still assume that bolo ties are only worn by military servicemen and women whom either hold a high position or have gained a title through valor. So that leaves the question; why was Grisha wearing a bolo tie? He doesn’t seem the soldier type, we know he was a well-known doctor. It’s possible that Grisha could have been anything in the military from a field medic, to even holding his own private medical research branch in the military. The later could easily explain how he was able to gain access to titan serums (as he was a titan shifter before he killed Historia’s family, and obtained a serum for Eren.)” This is a @ackersexual theory on #tumblr. Personally I think that this is just one of Isayama’s changes: he probably regretted drawing this detail and decided to change it in the anime.