This is an update to my original post regarding the Doane hand cancel used at the Tau, Samoa post office.
In the latest Schuyler Rumsey auction (#92), lot number 2779 is a 1¢ entire with a 1¢ Jamestown commemorative stamp (#328) paying the domestic letter rate to Illinois. This the second recorded envelope with the Tau, Samoa Doane handstamp, and seventh in this census. All six previous examples of this postmark are from Jun 23, 1909, P.M, however, this cover is postmarked March 30, 6, A.M. I am not sure if the 6 is for 1906 or 6 A.M. This cover was also sent to Rock Island, Illinois the same destination as four of the recorded postcards (Tau-3, 4, 5, and 6).
Tau-1
Tau-2
Tau-3
Tau-4
Tau-5
Tau-6
Tau-7
Tau-8
Tau-9