Cambodia. (Rural Post). 1933. Envelope addressed to Saigon bearing French Indo-China SG 186, 20c carmine tied by 'Poste Rurale/ Cambodge/ Ponley/ Kg-Chhnang' double ring, routed via Pnom-Penh with Saigon receiver '5/3' on reverse. Very rare item of Rurale Post mail from Kompong-Chhang Province.