Located four miles east of Chapelton

Cancel Type	Potter No.	EKD	LKD	Cancel Notes
Temp. Rubber Handstamp. Type - R1/8	7350.01	21.9.1894	9.11.1894
Double Ring Datestamp - with dots	7350.02	9.1.1895	7.2.1934
Double Ring Datestamp - no dots	7350.03	11.1.1937	20.5.1967	Year plug is often missing.
Modern Single Ring (* above date)	7350.04	8.11.1956	27.5.1976	Distance from the bottom of the “R” at the end of RIVER to the top of the “A” at the end of JAMAICA is 10mm.
Modern Single Ring	7350.05	19.9.1964	4.1.1991	Distance from the bottom of the “R” at the end of RIVER to the top of the “A” at the end of JAMAICA is 8mm. Known used in violet up to 26.9.1973, then changed to black.
Temp. Rubber Handstamp. Type - O3*PO/37k	7350.06	2.5.1987	23.12.1988	Reads: “ROCK RIVER / POST OFFICE, JAMAICA”.