Page 5 - Jarvis & Wright: Jamaica Display to RPSL
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     Jamaica: Pre-Adhesive Postal Markings
      Single-Line Hand-Stamps
                              Kingston Packet Letter with ‘JAMAICA’ J1 (PS6)
                           This mark is recorded used between Oct 1777 and May 1782 and again in 1798.
                Kingston: Dated 2 Mar 1778; JAMAICA: Type J1 (PS6), At London: Bishopmark 24/AP on reverse. Rated 1s.
                           Spanish Town Packet Letter with ‘IAMAICA’ J2 (PS8)
                        This mark is recorded used between June 1783 and May 1789 and again 1792 to 1798.
                               Spanish Town: (written at Great Salt Pond) bearing blurred Spanish Town T1
                              and ‘IAMAICA’ Type J2 (PS8) (45mm length) applied at Kingston To Madeira.
     	
