How about this ?:
Some of the other changes in the illustration don’t seem quite so obvious. For example, why are some charts shipped with changes marked as “See Other Side?” When you see this change note, flip the approach chart to the reverse side and you will note that some type of change was made which required the reissuance of that approach sheet. We formerly used the words “None” for the Changes note on the side that had no changes, but the com-plaints were numerous - the solution? “See Other Side.” Occasionally a chart has been in the field so long that it should be revised even though there are no aeronautical changes to make a revision necessary. This type of chart is marked with the notation “Reissue.”
http://craigmorton.com/ifr/16-may99aopa.pdf