S21 1966 Arbor day

The ” Arbor Day ” stamp series marks the nation’s first philatelic tribute to the Royal Tree Planting Ceremony. The design depicts a civilian planting trees, framing environmental stewardship as a universal civic duty across all levels of society. Rooted in a national reforestation initiative established by King Norodom Sihanouk in 1952, the set directly linked forest health to economic balance, disaster mitigation, and state stability. Beyond its artistic refinement, this Sangkum-era issue stands as a visionary monument to early ecological consciousness, immortalizing a royal conservation legacy that continues to define Cambodian national identity.