This page contains postmarks from all the surveys.

Image	Classification	Dimensions
2009
	2-2 (USS,FPO AP 96662-2418)   (not sure why the year shows 2005)	28
2005
	2-2 (USS,FPO AP 96662-2418)	28

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