Cancel Type	Potter No.	EKD	LKD	Cancel Notes
Temp. Rubber Handstamp. Type - O3*WI/37e	7640.01	1.11.1960	30.6.1962	Used in black from 12th to 30.1.1961 and on 5.6.1961. Otherwise only in violet.
Modern Single Ring (* above date)	7640.02	7.6.1962	10.1.1996	Seen with year in manuscript.