If you notice the catalog value of the RO37b and the RO37b with the double transfer they are about the same value. The reason why is that it is not much of a double transfer and it exists on almost half of the RO37b that I have in my collection. You will see the background shading horizontal lines in the center circle of the stamp extending into the left clear area of the circle at the left center of the stamp. Also there is some doubling noticeable in the two rectangular shaped ornaments between "CENTS" and the adjacent clear circle area. This double transfer is about as exciting as the Barber Match Co. doubling.

