| CROATIA | 1919 (20 June) Zagreb - Bosnia, Sernica (22 June) Registered express reverse multifkd env, including Depart Zagreb tied censor label WWI end + 10r labels on front. Rare postal service + usage. |
U$ | 60 |
| CROATIA | 1919 (20 June) Zagreb - Bosnia, Sernica (22 June) Registered express reverse multifkd env, including Depart Zagreb tied censor label WWI end + 10r labels on front. Rare postal service + usage. |
U$ | 60 |