Complex sentence: The design was by Percy Metcalf, an English artist, and the coin had a diameter of 1.005 inches (25.5 mm) and weight if 5.66990 grams.
Split into simpler sentences: The design was by Percy Metcalf, an English artist. The coin had a diameter of 1.005 inches (25.5 mm) and weight of 5.66990 grams.