Many unfinished boxes (those that are simply brown) have a seal on the bottom that says they're "certified" (apparently someone does that) and it lists their place of origin and their class, which also notes their construction.
My primary function at my main job (coffee shop) was washing and cleaning things. Secondary was unpacking things that had been delivered. Because of the nature of the items at a coffee shop, there were a surprising amount of boxes for me to deal with on a nearly daily basis. My other job was on the "Almanac Team" at Bath & Body Works. I had a variety of tasks and nearly all of them had something to do with a box. I was one of only three guys employed there and the only one that worked regularly. While not part of my job, I often answered the questions females had about men and delivered scathing social commentary about women. Also, I was the tallest and, despite my lanky, thin Irish body, the strongest. Cute girls pretend flirting with me to get me to do things for them because of their short stature was always fun. I miss that job.
I'm Nute Gunray and I approved this message.