Answer:
Shape, materials used in its formation and weight.
Explanation:
The main differences between punched marked coins and today's coin are its shape and materials used in its formation. The today's coins are made up of Copper plated Zinc whereas the punched marked coins are made of silver. The shape and structure of today's coins are circular while on the other hand, the shape of punched marked coins are irregular. The weight of today's coins are less whereas the weight of punched marked coins are heavier.
