563 UNITED STATES - GUAM - POSTAL HISTORY Auction #1907: WORLDWIDE + ARGENTINA: First general auction of the year! Cover / Used Cat.#: Fine Cover sent from GUAM to Texas on 9/APR/1948, VF quality! Starting Price: US$ 10 Current Price: US$ 10 Bid US$ 10 or more Closing: 2019-02-28 22:15:00