The corporate charter of Blue Spruce Corp. allows the issuance of a maximum of 4,800,000 shares of $1 par value common stock. During its first three years of operation, Anthony issued 2,160,000 shares at $13 per share. It later acquired 81,000 of these shares as treasury stock for $24 per share. Based on the above information, answer the following questions: (a) How many shares were authorized? Authorised shares shares