5151. S1: Production of coins starts with the buying of unmixed metals and their testing by the Assay Department. P: These ingots are reheated until the temperature is hot enough for hot rolling. Q: During this stage, the ingots pass through a series of rollers until they form long, thin sheets which are the thickness of a coin. R: From these thin strips, blank discs are punched. S: Then the metals are alloyed in oil – fired or electric arc furnaces, and cast into ingots 40 cm wide, 15 cm thick and 6 m long. S6: The blanks are heated to soften them, then rolled so that the rim is raised and are stamped with the design of the coin. The Proper sequence should be: