I have been making my own custom clothes and selling them online as well as clothing I find @ antique shops & thrifting, anything I find cool or interesting or vintage and desireable..I been doing this for about 6 years now & I happened to find a club21 tee shirt..they are "world famous tees" as it says on the tag,but I can't find anything about them anywhere..I even have the same RN number you said you had but my search came up with nothing..the shirt I have is really cool,it's a huge well printed weed leaf on the front and says "Just Blaze" under it..the leaf has these skeleton versions of rapper faces like snoop,tupac,easy-e & others going down the leaf..the eyes have red gems in them and many are still there..great shirt but I can't find a price range for them or an origin or a timeline for when it was made.hopefully someone can shed light on this brand and share more info about them..for now,I am hanging onto this shirt I have.
