Lot 1212U.S. Sub. Pearl Harbor Br., Honolulu T.H. Dec 6, 9:30AM, 1941, duplex ties 3¢ defense (901) on cover to Wrentham Mass., endorsed "Mailed from Pearl harbor, December 6. 1941, Save" at left; some tiny tone spots, otherwise Very Fine and scarce use the day prior to Pearl Harbor.
Estimate $500 - 750.