Canadian Government UFO Document: 

“Canada’s UFOs: 

Shag Harbour, Nova Scotia – October 4, 1967”
(Department of National Defence, Ottawa, Canada)

An RCMP Corporal and six other witnesses sighted the unknown object, according to the memo:

http://www.collectionscanada.gc.ca/ufo/002029-1500-e.html

The logo of the Department of National Defence
(wikimedia.org image)