| CROATIA | c. 1917-8. Istria - Italy, Frescore Balneario, Bergamo, Internment Camp. Red cross lilac cachet WWI free mail envelope. From military officer. |
U$ | 100 |
| CROATIA | c. 1917-8. Istria - Italy, Frescore Balneario, Bergamo, Internment Camp. Red cross lilac cachet WWI free mail envelope. From military officer. |
U$ | 100 |