Due to the damage which a color changeling is, the value is south of $0.05, perhaps south of $0.01 cents as well.
That said Golfer9:

You should ask such questions in a new thread you start. While the stamps may look the same to you there is a wide difference between a "stamp" and a "cover" (stamp in the mailing container) Here the item in the OP would be multiples of the value of yours, likely in the 5-10 cent range for being still on cover.