1906 American Eagle barrel markings

Bill, I own a 1904, A.E., see page 100 of Kenyons book. It is a correct weapon. On the underside of the barrel, just in front of the frame appears a 5 digit serial (491xx) and the N with a crown on top as seen in figure #4 on page 38 of Kenyons book. There are no other markings on the barrel. The cailber is 7.65,(30cal). Hope this is of a help to you, .....Schwob