Here is a double transfer on R164.
Too many Pick Up Points (PUP).
I've added arrows points to some of the more important PUP.
I've also reported a black and white image, a trick by an old timer that makes looking for double transfers easier. Works best on Red color stamps. Works but not as good on yellow stamps!
The 1898 Revenue Series U.S. Stamps have many varieties!
Easy to find.