I think it's similar to my box Paul and mine looks odd but is definitely a pontil mark. What makes it look strange is it is not exactly round in shape and the base has been polished flat, so it looks strange somehow - hard to explain. It's not a way I see bases finished which is why it struck me on this piece as it's the first one I've seen like mine. But I think it is definitely not a molded mark

despite it looking like that.
edited - re looking again, perhaps on this one it is mold blown and then the base has been polished flat leaving that indented area that looks like a pontil mark but isn't. That might explain why my 'pontil mark' always looked odd to me. My pontil mark looks polished but oddly shaped, not circular and it doesn't have the mold rings showing that this one does though.
And re the uranium glass, it could be something like Josephinenhutte or Schactenbach for the the glass maybe, but the enamelling is very distinctive - again the only piece I've seen like my box. I'll add some pics in a mo. I had been wondering if my box was Persian for example. But I've no way of knowing if they made opaline uranium glass. My box is white , incredibly beautiful opaline glass quality.
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