Pages in black and white are photocopies of the original transcription books. This was usually done when a book was becoming worn, and you can see the annotations (rather faintly) that would have been in red or green in the original.
While there is no available list of all the abbreviations and annotations that were used in the five decades that the register was in use, the meanings of some of them are known. In this case, the note against John Sullivan's entry reads 'Re-reg YKIA 671813' with what appears to be a date '9-10-41', a little hard to read because it is crossed out and marked 'Cancelled'. Four-letter codes beginning with Y were used when an identity card was lost or stolen, the old number was cancelled and a new one issued. The remaining three letters were the area code for the place where the new number was issued (KIA was the code for Sheffield). No idea why the replacement number would have cancelled, though...(More research needed!)
