Hawaiian Stamps and Covers

The only known cover with the 2¢ Hawaii Missionary (Sc. 1)
http://www.hawaiianstamps.com/

U.S. 1937 Hawaii Territory commemorative with Honolulu Statue of
King Kamehameha I
http://www.gohawaii.com/statewide/travel-tips/history

1891 Hawaii stamp, Queen Liliuokalani
http://en.wikipedia.org/wiki/History_of_Hawaii

U.S. 1972 National Parks airmail stamp
http://www.hawaiian-roots.com/hawaiihistory.htm

U.S. 2010 Hawaiian Rain Forest sheetlet
http://www.hawaiianencyclopedia.com/default.asp

The second letter from a Hawaii Missionary, sent May 14, 1820 from
Honolulu to Utica, N.Y. https://archive.org/details/portraitsofameri00hawarich

Kamehameha Day event cover
http://www.royalty.nu/Oceania/Hawaii.html

1845 Letter sent by Lucy Thurston to Marlborough, Mass.
http://en.wikipedia.org/wiki/Thurston_Twigg-Smith

1865 Kamehameha V Free Frank
http://www.siegelauctions.com/dynamic/sales.php?sale_no=769
http://www.siegelauctions.com/dynamic/sales.php?sale_no=931