Certainly not a Giudon in there!! Your topic title had me breathing hard for a moment!!
These are called, in the Armoured world, "pennants". Two main types: Dovetailed (sometimes called Swallow Tailed) and pintailed. Dovetail is usually for "Commanders" and pintail for the troops. Typically a driver, gunner, or crew commander would get the pintail and the Troop Leader up, plus SHQ positions, would get the dovetail. Sqn Cmdrs, CO and the like.
Your first one (pintail blank) could be a lance pennant but definately not to the RCD; the colours are wrong. To me it looks like the 12e RBC (12th Regiment Blinde' du Canada).
The second looks to have Sask Dragoon colours.
The third is certainly an odd colour but I think either the BCR or BCD use purple. Not sure. Nothing says it has o be to an Armoured unit tho'.
And the final one is RCD but not B Sqn 3 Troop. "3B" is a Command Post Vehicle for C Sqn HQ's Operation Warrant Officer. The Battle Captain would be 3A. Depending on what era it's from (and it looks similar in construction to my 60's era ones) that vehicle could have been a Tracked Command Post (M577 "Queen Mary") or a wheeled CP vehicle.
Hope that is of some help to you.
Last edited by Darrell on Tue Mar 01, 2011 6:17 pm; edited 2 times in total