With regard to the last Red Ensign to fly over the Peace Tower.
It is now in the Canadian Museum of Civilization, Item No D-1776, described as "This was the Canadian Red Ensign to be flown from the Peace Tower in Ottawa and was lowered on February 15, 1965 at 10:45 a.m. That day was the day was the day of the proclamation of the Canadian Flag. Flag made of silk. Label sewn on it reads 'SCYCO PRODUCT, MADE IN CANADA' Stamped on side is 'Canadian Ensign' D.P.W. 12 ft. Canadian coat of arms is sewn on separately."
On 16 December 1965, the Secretary of State transferred two "Red Ensign flags for safekeeping" to the National Museum. "The large one is the last Canadian flag to be flown from the Peace Tower and which was lowered on February 15, 1965. The smaller one was used for the ceremony."