The One-dollar Prexie
Five times airmail from Hawaii
The airmail rate to and from Hawaii and the mainland cost twenty cents for the first half-ounce between April 21, 1937 until January 15, 1945.
This quintuple rate cover was mailed from Hawaii to Washington, DC in October of 1944. The censor marking is interesting, and there is a smudged blue dot on the back, indicating no need to censor it at any other mail point it passed through.