Logical Progression Cube - Walnut

If I can't solve a puzzle without resorting to looking up the solution, off the shelf it goes! Hence this listing for a Logical Progression cube, and the relatively sought-after walnut version. I was missing the crucial insight necessary to put this thing back together and spent days making abstract art with it.  

And I'll say this: as soon as I looked up what that insight was, the entire puzzle fell into place; it's completely and utterly fair. So don't do what I did - there's a strategy beyond trial and error!

Bought second-hand but in good condition. Ships from the US and buyer pays shipping, so bid accordingly.