How is it that the 5 and 25 are the same color. Have they been redyed?

BTW, thanx for letting me know that the 5 and tulip are a matched set. I am trying to show all matched sets.

Here is my page of matched sets:

http://www.angelfire.com/extreme/chipper/IVORY/MatchedSetsIndex.htm

I'll be adding the 5 and tulip soon. I guess I won't be seeing the 25 any time soon