St. Helena & Ascension 50-PENCE (KM5) Sea Turtle
There are seven species of Marine turtles (aka Sea turtles), and most of them are headed for extinction.
This large equilaterally-curved heptagon (7-sided) coin was issued in 1984 only. "Equilaterally-curved" means if you placed a compass point on one of the seven apexes (points), it would trace out the curve of the opposite side. This makes for a 7-sided coin that can actually roll along on its edge.
- Diameter: 30 mm
- Composition: Copper-Nickel
- CAT#: KM5