The 6th Asian Electronics Conference, Manila (1971) and Related Events 1972
Viser nu Filippinerne - Post frimærker - 1972 - The 6th Asian Electronics Conference, Manila (1971) and Related Events - 2 frimærker.
Viser nu Filippinerne - Post frimærker - 1972 - The 6th Asian Electronics Conference, Manila (1971) and Related Events - 2 frimærker.