INB ( International Numismatics Bureau ) is a fellow ( with questionable eyesight ) up in Minnesota who grades his own coins according to his own solitary opinion.  I know because I spoke with him two days ago by phone and he admitted such.  He is not bonded or insured.  He is not a corporation. He seemed quite puzzelled as to how I got his phone number but I never told him.   And when I asked what "Certified" meant on his label he replied, "Not much!"  I too purchased a lot of unseen coins for about a hundred and fifty dollars and when I opened the box there was no invoice and boy was I disappointed with what I got! Common coins in a Coinworld holder with a lazerjet printed label that read,"INB Certified."   A set of proofs had a quarter in it that was a different year from the other coins in the slab and was mislabeled as well!  All of the coins were modern clad coins except for a 1955 silver dime that was graded ms70!  Whooo Hooo!!   It might go as a ms65- MAYBE!  My full refund including 45.00 dollars for shipping is on the way back home.  Buyers beware!!