Hi McSpool!
If it was an infantry division it was either the West Nova Scotia Regiment, (1 Div), the South Saskatchewan Regiment, (2 Div), or the North Nova Scotia Highlanders (3 Div). There was no "69" (I can hear the ribald jokes already!
: ) in an armoured div.
"69" on a Blue/Red/Blue vertically striped tac sign is 1 Corps and Army Troops Sub-park, Royal Canadian Ordnance Corps or 2 Corps and Army Troops Sub-park, Royal Canadian Ordnance Corps.
There was a series in the 60's for medical units at Corps level but it stops at 68 (all right... no yodelling in the canyon at the hospitals... OK!
)
If we nail down who was where, when; I'd bet on the West Novies, the SSR or the North Novies.
Mike