Russia – Latvia: 1918 (29 January). Registered cover to Danish Red Cross franked with 10k and 50k tied by Ruen (today Rujiena) datestamps, Rouen registration label, violet Petrograd #87 censor cachet and OPENED BY CENSOR 4459 label. Reverse repeat of the censor cachet and scarce Petrograd Military Postal Censor seal and Copenhagen arrival cds.
