Which of the following statements is correct? 

(i) Knowledge of glass-blowing reached India and attained its peak in the early centuries of the Christian era. 

(ii) A coin mould from Satavahana level shows that through it half a dozen coins could be turned out at a time.

(iii) The craftsmen made fake Roman coins.

(iv) Largest number of terracottas and their moulds are found at Yelleshwaram in Nalgonda district of Andhra Pradesh.

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