1968 Topps Mike McCormick - White Team Name

[deweyinthehall]

So, as I crawl ever nearer to completing the basic and master set of 1968s, I'd like to poll the combined wisdom of this assembly on this subject.

What is the best guess we have on this question:

Is the McCormick error (and please forgive my lack of proper printing process vocabulary):
1) a case where the yellow simply didn't get applied as it was supposed to in a small number of passes, making it an error in the printing process itself, or
2) a case where the sheets were sent to print with the team name in white (like the Red Sox, Angels and others), only to be discovered during QC, requiring someone to change the color, making it a design error.

I'm thinking perhaps the former - the other two teams with green circles don't have white names (Senators have yellow like the Giants and Orioles have black), so someone wouldn't have confused it for a card of another team.

This is an important question to me as my master sets include only design variations, not printing flaws, so there's a bit of my own green, so to speak, riding on how this comes out.

Thanks!