Michael; Somewhat OT but interesting nevertheless.
Google "army stable belt" to further your search for corps colours.
Velox Versutus Vigilins appeared on our R.C. Corps of Signals (Queen's Crown) hatbadge. Other corps in the Canadian Army had their own hatbadges and mottos thereon. In the Infantry and Armoured Corps , the various Regular regiments (Queen's Own, PPCLI, RCR, Van-Doos, Black Watch, 8th Canadian Hussars, Fort Gary Horse etc.) had their own capbadges and mottos. The Militia infantry and armoured regiments had their own individual capbadges too. In 1963 basic training at Vimy Barracks Kingston we were taught that V.V.V. meant speed, accuracy, watchfulness - different words than your translation but they mean the same. The R.C. Air Force had their own (single) hatbadge as did the R.C. Navy. With the "unification"

of the Canadian Armed Forces in the 1967/68 period, Army Signals, RCAF communicators and RCN communicators all were melded into the Communications Branch - new "unified" Communications Branch hatbadge with motto - Celer et Fidelis.
In the 1963-65 period I recall some older signallers at work wearing their "stable belts" - a belt of relatively wide stiff cloth of corps colours (French grey over blue). I remember seeing other corps' "stable belts" being worn in Camp Petawawa Ontario in 1965, but they disappeared

shortly thereafter.
Hope this helps.