SIR JAMES COCKLE, CHIEF JUSTICE &MATHEMATICIAN 1819-1895
This battered long blue envelope is addressed to Sir James Cockle, chief Justice of Queensland, Brisbane, Queensland and it had the blue 2 d N.S.W. stamp postmarked with an unframed duplex SYDNEY/ E/ JU 1/ 74/ P postmark. There were no markings on the reverse (Figure 1). Cockle was born on 14 January 1819, the second son of James Cockle of Great Oakley, in Essex, England. After completing school at