This page contains postmarks from all the surveys.

Image	Classification	Dimensions
2009
(No postmarks received)
2008
	F  [CD-10]	n/a
2007
(No postmarks received)
2006
(No postmarks received)
2005
(No postmarks received)
2004
	11-1tn+ (USN,USS)	34
	12-1tn+ (USN,USS)	31

Cancel dial dimensions are given in millimeters. If not circular, the first dimension is horizontal and the second dimension is vertical.