Lot
1006 
Registry, 1911, 10¢ ultramarine, tied by "Baltimore Md., Reg" oval on 2¢ carmine (U411) entire to Berlin, Germany, "Baltimore Reg. Div. Dec 2 1911" origin backstamps along with New York (12.3) and German (12.19) arrival cds, Very Fine, ex-Wagner; with photocopy of 2002 P.F. certificate. Scott No. F1 Estimate $400 - 600.
This was used on the Second Day of Use. There are only four recorded F1 first day covers that Cat. $17,500, with only one to an overseas destination. This is the second earliest known use abroad.
Realized: $325