This bland historical curio is, as others have also pointed out, really only of any interest at all because it is the only color movie made by the great comedy team of Stan Laurel and Oliver Hardy. The movie itself, though, is hardly worthy of their talents. Even though it only runs for about five minutes, it quickly becomes boring, and it could have made all its points in a fraction of the time.
Most of the movie consists of Stan and Ollie being prompted by a narrator as he points out the many familiar articles that include wood or other tree products, beyond the ones that are obvious. The script gives the two comedians almost no opportunities to do anything. Aside from a couple of relatively amusing gestures and expressions, there's only dead time.
The subject surely has some interesting points somewhere, and it's hard to believe that they couldn't have written a much better script if they had tried harder. Laurel and Hardy could make almost anything entertaining, given the chance. But unfortunately they really don't get a chance here, and as a result this movie really has no strengths.