My response would focus solely on the black object.
While it appears to be upside down (as in if you put it in a sim card tray, the pins don't face the direction of the contacts to the sim cards), it's size and shape and location of the 6 pins matches a sim card.
Maybe the pins are not covered on the other side? In that case, maybe it's meant to be put in the phone so that the sim card contacts isn't just exposed to air and have current running through it? Wouldn't know why that's important, but it seems to fit.