Belgium’s 1966 commemorative 2 Franc stamp celebrates the work of the Royal Meteorological Institute, showcasing the intricate geometry of natural snow crystals. The design features beautifully rendered hexagonal snowflakes in contrasting colors—yellow, black, and white—set against a textured blue winter background. This issue highlights both scientific observation and artistic detail, making it a standout thematic item for weather, science, and nature collectors. Its crisp engraving and mid-century Belgian design style add to its desirability in mint or well-preserved used condition.