Episode 2: Whiteboard Model?

So I figured here was the best place to post this. What is that godforsaken whiteboard prop from Episode Two called? I’m talking about the one right before Dr. Magnusson gives you training with the Magnusson bomb…thing.

In Hammer’s Model Browser, I’ve searched Silo, Metal, Board, Whiteboard, White, Strider, magnusson, Dry Erase and you get the point.

I can’t find it anywhere.
I also know it’s a prop, because I remember using it as a prop in Garry’s Mod before, but for the life of me I can’t remember what it’s called.

So if someone could enlighten me on that that’d be super duper, thanks.

(Oh, and it’s this one here. http://en.wikipedia.org/wiki/File:Magnusson_Device_Explanation.jpg )

…and sorry if I’m in the wrong section, if I am, just scoot me elsewhere, I’ll go.