[glynparson]

I believe they don't have one because the SGC cert # is the invoice number along with the card number from the invoice . Therefore they feel many collector's do not want people to know what they are submitting so there is the whole issue of customer privacy. Cert #'s at PSA seem to be much more random so you can have successive psa numbers and they are not always from the same invoice. Usually they are but not always. You can call Brian or Mike with the cert # and if you tell them what the card in your hand is they will verify for you if this is indeed the correct card and grade.