Aerodrome Defence Companies

[Bill A]

During WW2, local defence of airfields was delegated to 3rd or 4th Battalions of Canadian infantry regiments. The Regina Rifles and the Régiment de Chateauguay were the two units tasked with the duty. Before the named regiments took on the responisibility for the airfields, there had been independent infantry companies performing the task. These had been designated as Aerodrome Defence Company and had embroidered titles reading AERODROME DEFENCE COMPANY. In addition to the title there were subnominal numerals identifying the particular company. I have only seen the 4th. Does anyone have any other numbers?

[Bill A]

Still looking for more info on these subnominal numerals. Anyone collecting Canadian titles ever see any other numerals for these?