I think fake is most definitely not the word to use in this case. A fake is a copy of something or in the style of something produced with intent to deceive, which this is not. Pressed glass has been made round the world in 100s of factories for over 150 years. Many factories have produced hobnail based designs; many factories produced similar designs to each other. A fair few designs were plagiarised. Many designs were produced over long periods.
FWIW, I think your tray is mid 20th C or older because it glows under UV, which indicates the use of manganese as a decolorant (its use was superseded by cheaper decolorants and easier access to supplies of better quality sand). And I would say it's probably not European because it's not the sort of shape that we seem to see here, but I could be wrong. I think perhaps what I'm trying to say is that perhaps you have to widen your horizons from EAPG; it could be APG, just not E; it could be EPG but not A

, IYSWIM
The circular mark seems to be an artefact of some pressing machines; I have seen it too.