The rate for first class local letters was 4 cents for the first ounce and 2 cents for each additional ounce.

Tillsonburg, June 12, 1964

Sydney, N.S., February 7 1967
The Centennial definitives were issued the following day, February 8 1967

Thomson Bros. Imperial Esso Home Heat Service Dealer, Scarborough
July 7 1965

Ramsey's Esso Service Station, Sydney, N.S.
December 7, 1966
Official Mail

Unemployment Insurance Commission, Penticton, June 3 1963
"G" overprint

Unemployment Insurance Commission, Wallaceburg, September 13, 1963
2 ounce local letter : 4 cents for the first ounce + 2 cents for the next ounce
1 cent Wilding + 5 cent Cameo "G" overprinted stamps
Special Order Stationery

The Hospital for Sick Children, Toronto, December 14 1966
Perfins

Minister of Municipal Affairs, Regina, December 22 1966

Province of Saskatchewan perfin

Canadian Pacific, Calgary, August 31, 1964
CPR perfin

Canadian Pacific Telegram, Vancouver February 10, 1964
Due

Kitchener local first class letter, January 23, 1967
Shortpaid 1 cent and taxed 2 cents, double the deficiency
Undeliverable : Without Return Address on the Outside

Sydney, February 5, 1965
The addressee had moved leaving no forwarding address. Since there was no return address, the Sydney post office sent the letter to the Undeliverable Mail Office (UMO) in Montreal. The letter was opened and the sender's addressed obtained. The letter was then returned to the sender in an ambulance envelope and charged a 5 cent fee.

Letter Carrier Branch, Sydney oval cancellation, February 6 1965
Montreal UMO handstamp, February 26, 1965