Siege of Amsterdam; emergency coin of ten pennies; minted from the urban silver; one-sided; diamond shaped emergency coin. Front: two stamps one above the other; from bottom to top: mintmaster sign: fire steel; city coat of arms: crowned coat of arms between years; left of crown letter X; right letter S inside round pearl rim. Reverse: blank; Amsterdam; anonymous; 5-Jan-1578; silver (metal); striking (metalworking); h 3.3 cm x w 3.2 cm x w 6.27 gr