Also Ci1 instead of Ci2 - so it's a Ci1 label on a Ci2 card. Great error card!
You got it. It has a Ci2 number (xxx-200), Ci1 cards go to xxx-380. My theory is that they sorted the card by the front and put it in
the Ci2 pile for stamping the serial number. I don't imagine that there is a Ci2 numbered 104.
The back is from Ci1, if they had sorted it by the back it may have gone into the Ci1 pile for stamping.
It pays to double check the fronts against the backs, heh?