There was a 20¢ domestic air mail rate to/from Hawaii in effect from April 21, 1937 thru January 14, 1945. Currently, the number of solo uses of the $1 sheet stamp paying 5 times the 20-cents/ounce airmail rate to/from Hawaii is: 1. 

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Description: Air mail cover, dated October 16, 1941 , with a solo $1 Prexie paying 20 times the domestic air mail rate from Honolulu, Hawaii to Washington, DC.

Owner/Source: Bob Hohertz web site.

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