Help solve a mystery?

One of the dangers of writing is getting lost in research. Because I am a geek and I do love doing research.

Today for my WIP I was looking up some stuff about Northwest Portland in the 1960s. It’s only a very minor plot point, actually, but I like to be accurate. I discovered the city has a great blog of vintage photos. You can check it out here.

While I was poking around, thoroughly distracted from my original task, I found this photo of a building in what’s now the Pearl District:

That’s the Pacific Coast Biscuit Factory in 1917. The reason why it caught my eye is that this is a photo I took in Portland a couple of weeks ago:

Yep, same building, 99 years later. I took the picture because Colin, one of the MCs in my WIP, lives in a Pearl District loft. I thought this building (which is actually a parking garage) looked exactly like what I imagined for him.

So here’s the mystery part. The Vintage Portland post claims that the top floor was removed from the building at some point after 1917. But I don’t see that–it looks to me like it’s intact. But my photo’s not the greatest and I’m now 700 miles away, so I can’t check for myself.

What do you think? If you’re nearby and want to check it out in person, it’s at NW 12th & Davis–conveniently close to Powell’s Books.

And yeah, the solution to the mystery is irrelevant to my book. But it’s bugging me.

PS–Notice how there’s a thumbprint near the bottom right of the 1917 photo! I wonder whose. That’s another mystery!

ETA: I’ve solved the mystery! Can you? Hint: I used Google maps.