Sorry, but I'm a hair skeptical of this. First and foremost, a .454 Casull round shouldn't even chamber in a standard Judge in the first place. I know this because, out of curiosity, I tried to load a .454 Casull into the chamber of a Judge several years ago just to see if it would fit (I had no intention of attempting to fire it). The .454 cartridge would not fully chamber in much the same manner as trying to load a .357 Magnum cartridge in a .38 Special cylinder.
The reason for this is because, like most other revolvers, the Judge has a step machined into the chamber which prevents the longer .454 cartridge from going all the way in. A .410 shotshell can fully chamber because it is smaller in diameter than a .45 Long Colt and thus can slip past the step and into the elongated chamber throat.
The way I see it, the picture provided is of one of two things: either the revolver was grossly out-of-spec to allow a .454 Casull to chamber or, more likely since the photo is too blurry to make out a headstamp, an overpressure .45 Long Colt cartridge was fired (probably a handload).