I had to click on my notebook and open the documents tab. The parcel was in there. I clicked on the parcel and that put it in the window on the screen as if it had been in the inventory. I clicked on the image of the parcel and the valve appeared in my inventory.
Gotta say, though, this is a pretty buggy game. Now I'm trying to figure out how to get the map coordinates which I should already have. I started a saved game way back where I met Sarah and while I didn't get the coordinates this time either, but the parcel did do what it was supposed to do. (Go figure!) Alot of times I click through the conversations and wonder if that makes a mess of things. Maybe when I skip parts of the conversation I also skip the trigger for inventory items to do what they're supposed to do. Maybe??
Well I went back to try more conversation with Sarah and the count and the count had more to say! Then he went with me to the air ship and the map worked! Yay! That didn't happen the first time through. Buggy, buggy! I'm starting to same way more often!