The charger block does not have the Microsoft holographic sticker and the charger cable is missing the rubber clip on the chord. Are all extra chargers like this?
If I don't get it wrong, the sticker youre talking about is the "Windows 8 Pro" sticker.
If that's the case, it is the logo that is *supposed* to be attached to the device itself. You can see that on any other Windows device. However, Microsoft decided to put it on the charger for whatever reason. In short, the logo comes with the Windows 8 license, which comes with the device. Since you bought a charger only, with no Windows license, you don't get the sticker.