Each coin is specially selected for its superior proof quality standard and encased in a slab capsule. These coins are part of the coin mintages that are sold individually. Mintage: 500 pieces per design only The Dendrobium leonis has creamy yellow petals with a tinge of red, and a protruding broad lip. The vanilla–scented flowers measure about 1.2 cm to 1.5 cm in diameter. Each orchid bears many sprays of stems with thick, flattened and triangular leaves arranged in alternating rows.