The LW stands were made in China for only one year (2010) and poor quality control required the company return to US (but with a price increase.)
I believe the only marking is on the original box, but the stands made in China were so bad (potmarks, poor welding, etc...and some even said they looked like they had been submerged in salt water for a year.)
Those Chinese versions were selling for under $200 while US versions go for over $350.
Quality and sales were awful for the China version...and must have been really bad for them to return to USA.