TAUROGGEN (Lithuania): 10 kopeck brown and blue, large margins, tied by dotted oval "9" to lettersheet with reverse side boxed "TAUROGEN 20 JULY.1858" and oval handstamp "SPEDITIONS-GESCHÄFT JOHN G. KNIEP/TAUROGGEN", to Riga, with arrival mark. Supposed to origin from (most likely) German soil and forwarded. Just 13 No.1-entires have been recorded with dotted oval (border post office) cancellations and just four similar entires with the Kniep handstamp. Certificate Mikulski (1986, not mentioning forwarder)
