I have seen the full set of these 5 cards with certificates twice and other then that i havent run into man people that even new you could send the card in after you got the card out of pack's and the ones that new you could didnt see the point of a certificate back then...... even a guy who owned a card shop back in the day sold me 40 of these signature cards and didnt see a point getting certificate he saw it as a waste of money posting them in :/
this was the COA and the other card i got with the set...apparently if the signed gold card from the pack was sent pack to dynamic the bearer would recieve these back also