Gao Yang opened a specialized gun safe that contained three guns and a telescope, and there was also a piece of paper—a thin sheet that was actually a collectible certification.
There were only a few lines on the certificate, yet they verified that one of the M1911 pistols was among the original prototypes personally refined by John Moses Browning, with not a single part altered. Most importantly, the pistol could still fire. Although the recoil spring and the spring in the original magazine had lost their tension, at least it could still shoot bullets, and for an antique gun, that was a crucial detail.