Yes, it's VAM-3o (the "o" is normally shown lower-case in this instance, to differentiate it from "thirty"). Another pickup is above the wreath leaf on the inside and even with the left upright of the N in UNITED, a blob similar to the one in front of the eye. Your images show both blobs clearly, and the accompanying die polish. Nice coin. You don't see these very often.
Yes. That's one of my discoveries. The assumption is that the dies clashed through some piece of debris, since they're directly opposite each other.