1951 Siking (7 Dec) to Czechoslovakia, f.w. S1 National Emblem completet set + C11, A1 and Tiananmen R series issue odd values, tied by
1951 Siking (7 Dec) to Czechoslovakia, f.w. S1 National Emblem completet set + C11, A1 and Tiananmen R series issue odd values, tied by Siking cds. Transit Peking (8 Dec). Censored and resealed in Czechoslovakia. Nice franking. Censorship is also unusual
