Airmail - "For Poison Gas Victims" - Overprinted "FOR POISON GAS VICTIMS" and Surcharged 1967
Now showing: Yemen, Kingdom - Postage stamps - 1967 - Airmail - "For Poison Gas Victims" - Overprinted "FOR POISON GAS VICTIMS" and Surcharged - 1 stamps.
Now showing: Yemen, Kingdom - Postage stamps - 1967 - Airmail - "For Poison Gas Victims" - Overprinted "FOR POISON GAS VICTIMS" and Surcharged - 1 stamps.