Loco and Asset Packs

I am currently using the free update version of TS 2017. I originally purchased Train Simulator in June, 2014, so I think my first version was TS2013. I'm interested in getting a freeware route from Steam Workshop that, among other assets, requires the "American/European" asset packs.
Finally the question: I know I have the U.S. Loco and Asset Pack - I see it in my DLC list on Steam, and I assume this is the "American Asset Pack." I don't see a "European Asset Pack" in my DLC list. But on Steam, both of these packs say, “If you have Railworks or Train Simulator 2012, you already have the contents of this pack.” Perhaps it has a different name in the DLC list? Just want to know if I'm going to need to buy it.
I know Steam won't let you buy something you already own, but with the way my luck with technology is running this week, I can't count on that.
Thanks for the help.
Finally the question: I know I have the U.S. Loco and Asset Pack - I see it in my DLC list on Steam, and I assume this is the "American Asset Pack." I don't see a "European Asset Pack" in my DLC list. But on Steam, both of these packs say, “If you have Railworks or Train Simulator 2012, you already have the contents of this pack.” Perhaps it has a different name in the DLC list? Just want to know if I'm going to need to buy it.
I know Steam won't let you buy something you already own, but with the way my luck with technology is running this week, I can't count on that.

Thanks for the help.