727 ARGENTINA - POSTAL HISTORY Auction #1920: WORLDWIDE + ARGENTINA: General May auction Cover / Cat.#: VF. Cover used on 23/JA/1948 with slogan machine postmark about TRAFFIC SAFETY, VF quality, rare! Starting Price: US$ 10 Current Price: US$ 10 Bid US$ 10 or more Closing: 2019-05-30 22:10:00