1910 THREE on FOUR PENCE revaluated registered envelope to Germany with a 4d added to pay the postage, cancelled VAVAU AP 5. When transiting through New York a registration label was added. Seattle MAY 4, New York 9 MY, U S Sea Post MAY 10 and 18.5.10 transit and arrival cancels are on the back. An exceptionally rare revalued registered envelope. Believed very few exist.