Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

Manchuria 1927: 1 c. bright yellow-orange strip of three, 4 c. olive-green (3) and 1929 Unification 1 c. orange and 10 c. deep blue horizontal pair used on reverse of registered cover to Czechoslovakia endorsed "via Russia" tied by "SUIFENHO" cds's with Prague arrival alongside (May 12) and registration label on obverse. Some creasing but unusual.