661 CAMBODIA - POSTAL HISTORY Auction #170503: WORLDWIDE + ARGENTINA: attractive general auction! Cover / Cat.#: VF. Cover with commemorative cachet of the Phnom-Penh Intl. Philatelic Expo, 24/NO/1955, VF! Starting Price: US$ 10 Current Price: US$ 10 Bid US$ 10 or more Closing: 2017-05-03 22:15:00