1970-1972 Birds of Vietnam a colurful selection on commercial covers sent Air Mail to France and US, mixed frankings and single franking.
1970-1972 Birds of Vietnam a colurful selection on commercial covers sent Air Mail to France and US, mixed frankings and single franking. Not easy to find, good range for the Bird Thematic collector or triangular collector (23 items).1970至1972年一組貼用越南鳥類票之實寄封。
