1868 (Jun. 26) Frankfurt, Germany to Washington, D.C., cover prepaid 14kr. for direct mail rate with NGU 3kr. strip of three and 1kr. pair, both faulty, tied by Frankfurt (6.26) cds, red London (6.29) transit cds with matching "P.D." framed h.s. and "3/Cents" credit h.s., carried by NGL Line Bremen from Southampton Jun. 30 to New York arriving Jun. 11, red "New York Paid All Jul 12" exchange cds, manuscript "Forwarded" back to New York City with "Washington D.C. Jul 13" cds, Very Fine, this was an uncommon routing from Germany because of the error in handling. Estimate  $200 - 300. This letter was intended to be sent from either Bremen or Hamburg directly to New York, but it was sent in error in the open mails to G.B. Under the 1867 treaty, London was required to credit the U.S. with 3¢ on paid letters transiting through Great Britain. $0 (Image)