This striking triangular set from Mongolia, issued in 1961, celebrates the country’s native fauna through beautifully stylized engravings framed in bold geometric motifs inspired by traditional Mongolian design.

• 5 möngö – Sable (Martes zibellina): Depicts the prized sable, symbolizing Mongolia’s rich fur-bearing wildlife. The warm brown tone contrasts against a golden mountain backdrop and blue border.

• 15 möngö – Mole Rat (Ellobius talpinus): Shows the small burrowing rodent native to the Mongolian steppe, set against green reeds within a red geometric frame.

• 30 möngö – Argali Sheep (Ovis ammon): Features the majestic mountain sheep, known for its large curled horns, against a pink and green setting.

Printed in bright colors and distinctive triangular form, this issue is a favorite among collectors for its artistic simplicity and regional authenticity.