K,
Where you see numbers on coloured squares, they are regimental tactical signs which would have been painted on vehicles assigned to that unit, and which would have appeared on roadsigns directing that unit to its designated area during a road move. My sign "157" represents the 1st Canadian Armoured Carrier Regiment which I'm privileged to be a spokesman for ( see
http://www.1cacr.org for more info).
BTW, we WILL eventually hold "FRYDAY" here in London, and Marko will get his due. This shall come to pass...
