1900 and 1909
International Exposition, Paris, 1900; these are labels (not postally used).
Pnom Penh, September 1901.
From a Carte-Postale, postmarked Pnum Penh, March 1903.
and another dated 27 January 1903.
February 1904.
May 1905.
A clear example of the Pnom Penh postmark from 1906.
Another 1906 postmark from the Cambodian capital, but using the 'u' rather than the 'o' variation, i.e. Pnum penh rather than Pnom Penh.
August 1907 Pnom Penh postmark.
On a January 1909 cover from Pnom Penh to Saigon.