Hawaii, Honolulu, Hawaiian Islands, Apr 18. Cds (MH 243.03) on unpaid 1863 cover to New York City, with "San Francisco, Cal., May 13" transit cds with matching "Ship 12" straight line handstamp for collect (Mahoney 210), forwarded to Boston, Mass. with "New York, Jun 5, 1863" duplex postmark; cover missing backflap, Very Fine, a very scarce usage of the "Ship 12" handstamp used for collect mail in the Middle Treaty Period, ex Rust. Estimate  $600 - 800. $0 (Image)