The Eiffel Tower provides "+1 Industry Per Population on all Cities".

I have four cities with populations of 20, 30, 40, and 50.  I build the Eiffel Tower in my city with 50 population.  How much Industry does the tower grant each of my cities?

1. Each city gains Industry equal to its population (20, 30, 40, 50, respectively), or
2. Each city gets 50 Industry because that's the population of my Eiffel Tower city?

I'd love for it to be clearer in the game, in the wonder's help text, but also in the "Where is my Industry coming from?" tooltip; but all too often these wonders are collapsed into "+X from District" without any finer details, so I've never been able to answer this question.

My assumption has always been (1) - it adds the population of that city to industry.

(Happy to be corrected if it's the other)

But what I wanted to add is support for your idea that the breakdown could be a bit more detailed. But I think in this case, the problem is it can't show the FIMS on the wonder because the wonder is not located in the city. For other wonders, you can always see the FIMS so the breakdown is not as important.

Yeah, they just need to reword it like "Each City receives +1 Industry per citizen"