Koh Kong Province

One version of the Koh Kong provincial postmark, above.
And a different version of the Koh Kong postmark, left.
Related Sites:
Tourism of Cambodia Travel Guide to Koh Kong: http://www.tourismcambodia.org/provincial_guide/index.php?view=detail&prv=9
and also: http://www.tourismcambodia.com/travelguides/provinces/koh-kong/