Page 375 - Jarvis & Wright: Jamaica Display to RPSL
P. 375
Jamaica: Street Letter Boxes
Port Antonio
Port Antonio SLB Type 3
Known used 14 Sep 1927 to 13 Nov 1967
Port Antonio (13 Nov 1965) to Kingston
1½d Inland Postcard rate applied 1 Jul 1963 until 7 Sep 1969.
Port Antonio (16 Nov 1965) to USA
1s Airmail Letter rate to the USA applied 1 Jul 1963 until 7 Sep 1969.