MACKENZIE KING, William Lyon (1874-1950, Prime Minister of Canada from 1935-48, and before). Canada at Britain's Side, Toronto, 1941, 8vo, red buckram. FIRST EDITION, IMPORTANT PRESENTATION COPY, inscribed extensively by the author to Anthony Eden.

MACKENZIE KING, William Lyon (1874-1950, Prime Minister of Canada from 1935-48, and before).  Canada at Britain's Side. Toronto: The Macmillan Company of Canada Limited, 1941. 8vo (219 x 135mm). Half title, half tone frontispiece portrait. Original red buckram, spine lettered in gilt (spine and top edge of upper cover a little faded, without the dust-jacket). Provenance: Anthony Eden, 1st Earl of Avon (modern armorial bookplate loosely-inserted). FIRST EDITION, IMPORTANT PRESENTATION COPY, the front free endpaper inscribed, "To the Right Honourable Anthony Eden, Secretary of State for Foreign Affairs and Leader of the House of Commons in the government of the United Kingdom. With gratitude for the inspiration of his visit to Canada at this time of war, and with every good wish for years of continued service to the cause of justice and freedom throughout the world, from his friend, W. L. Mackenzie King, 'Laurier's House', Ottawa, Canada, April 1st 1943." The publisher's printed note at the beginning of the work concludes: "Canada entered the war as a free and united nation at the side of Britain. Mr Mackenzie King loses no opportunity of emphasizing the determination of the Canadian people to put forth their utmost effort till the hour of victory, and to remain to the end, freely and unitedly, at Britain's side." William Lyon Mackenzie King was the longest serving Prime Minister of Canada, holding that office for three terms from 1921 to 1926, 1926 to 1930 and 1935 to 1948.