2000 Collector's Edge Masters Football Forum

I have a Tee Martin card that does not contain the /3000 serial number. It is blank. Is this soemthing that is known? 

Considering the serial numbers are applied in a separate step, it could have very easily missed the step.

I have a card like this, here is a link to my post about it. You might find the responses interesting.
 

https://www.tcdb.com/Forum.cfm/Page/S/ID/3672/?MODE=VIEW&ThreadID=32251#196571

2000 was the last year of Collector's Edge before they went bankrupt, so there was likely a lot of aftermarket stuff that year, including non-numbered inserts

Didn't miss a step, wasn't backdoored and isn't exactly aftermarket. Collector's Edge sold off everything they had to other companies after their bankruptcy. All damage-replacement cards (aka "The Vault" that every card company has/had) were included in that. So all the cards that had not replaced a damaged version of an SN'd card made it to the secondary market. Collector's Edge cards missing a serial number are common due this fact (along with Fleer, Press Pass and others). We still can't add non-serial #'d cards to this DB since we don't know the full extent of it. You can still add the card to your collection or traders as the listed SN'd card, just add a note in Comments (using Detailed Add) that it is missing the SN.