PLYMOUTH TRANSATLANTIC POST OFFICE; 20 Oct. 1906 PPC to England franked KEVII 1d tied by fine and rare "TRANSATLANTIC POST OFFICE PLYMOUTH/3" cds. Ex Brooks and sold in our Sep. 2005 sale for £200. Cross Reference: SHIP LETTERS, INCOMING OVERSEAS MAIL, UNITED STATES OF AMERICA, TRANSATLANTIC MAIL (Image)