What is strange?
FWIW, there is an error, in that the 1 million numbers should be 999999 (e.g., the initial series was 1-999999. The reason for the V series in the first place was that the numbering machine could handle only 6 digits, so the V was put on all the frames before the actual numbering was done. So there was no 1000000; numbers went from 999999 to V1 and so on.
Jim