Paradise Tree - Simarouba or Ailanthus?

[SA-Motors]

I got his piece many years ago and written on it in my handwriting is the name Paradise Tree Simarouba Glauca. Unfortunately I don't remember where I got it. It looks more like Ailanthus Altissima to me, which I think may also be called Paradise Tree. Can anyone offer their insight on the piece I have - to help me identify its species?

 

[SA-Motors]

 

[daniscool]

Density? Ailanthus altissima is extremely light. If this isn't that would be ruled out.

 

[Big Ry]

If there's a chance that it's Ailanthus altissima, I should still have some Ailanthus from Paul's collection for comparison. I'm not sure if it's the same species, as Paul's was only labeled "Ailanthus". Perhaps @Mr. Peet could speak to that, though I suspect Mark has IWCS samples of this anyway lol