Entire letter to France from Riga (Then in Russian Occ.).Sent via East Prussia.Front bears black MEMEL 21 NOV. & 'P.P.' strikes & red oval 4 / A.E.D. & boxed PRUSSE / PAR / FORBACH cachets.& m/script '2½'. Flap has large black BAYONNE receiver, & red m/script '40'. Clean & rare usage. (Start Price = £20.00)