Svay Rieng Province
The Svay Rieng provincial postmark shortly before Cambodia's independence from the French in November 1951.
Related Sites:
Tourism of Cambodia Travel Guide to Svay Rieng: http://www.tourismcambodia.org/provincial_guide/index.php?view=detail&prv=23
and also: http://www.tourismcambodia.com/travelguides/provinces/svay-rieng/