This mis-printed back on the Collins card clearly indicates that the adjacent card is also Collins. Could it be the Collins (mouth closed) version....which has the same back ?
Perhaps, YES. However, I think the Mouth Open version was printed in a different series than the Mouth Closed card. Maybe some of our Net54 T205 experts will chime in here and clarify which Collins card they think was printed adjacent to this one.
TED Z