Below are four pristine sets of 12 Eagle/Berol Canadiana colored pencils. They span about two decades of time. The final Berol set mixes up the colors and removed white and lavendar and replaces them with champagne and purple. Eagle was the best selling pencil brand in Canada during much of this time period but Laurentian colored pencils from Venus seemed to be the more popular colored pencil for students.

During the year 1935, Dixon launched a nation-wide advertising campaign for the Dixon Chancellor pencil. These ads highlighted the fact that this was a Canadian made pencil using Canadian graphite. The ads have a distinctly nationalistic sentiment. I think that looking at these ads through the lens of the political and societal backdrop of the day is revealing.

In 1935, Canada was still firmly in the grip of the great depression. Unemployment was  high and consumer confidence was low. Authoriatarianism and Fascism was on the rise globally. Hitler was firmly in power in Germany and Mousalini was about to embark on the invasion of Ethiopia. Japan was increasingly nationalistic and militarized. In short, the promise of a world at peace at the end of World War 1, "the war to end all wars", was looking extremely precarious. In Canada, the World War 1 documentary "Lest We Forget" was released. 

With the possibility of war with Germany on the horizon, the film highlighted the tragedy of war and futility of conflict. "Lest We Forget played for a year in Canadian theatres and grossed $34,000. The footage it used is a staple of Canadian war films and documentaries to this day." according to War Art in Canada. 

from The Border Cities Star, Windsor, Ontario, March 8th, 1935
Ottawa Views War Picture "LEST WE FORGET" - Parliament Rises to Attend Propaganda Film
  OTTAWA, March 8. — Canada's legislative machinery was silenced last night as the leaders of the nation, rising early from their law-making duties, proceeded en masse to view a motion picture. The Governor General and Lady Bessborough, members of the Dominion cabinet, distinguished Parliamentarians, representatives of church and state crowded to witness the premiere showing of Canada's anti-war picture, "Lest We Forget."
  Sponsored by the Canadian Legion in an effort to portray the tragic futility of war and to bring home through the visible sense the stupidity and folly of armed conflict, the picture is a product of the Canadian Government Motion Picture Bureau, secured from the reservoir of film which, taken during the tragic years from 1914 to 1918, now rests in the treasury.
  It was not in the words of Brig. Gen. Alex Ross, Dominion president of the Legion, who spoke briefly before the picture opened, a performance that was not a social event but a solemn occasion, long desired by the veteran body of Canada, which has felt it necessary that war should be portrayed in all its stark reality.
  "We feel that such an impression should be attended with all due ceremony in accordance with the British tradition, that those who have sacrificed in the cause of King and Country shall be accorded every honour which a grateful country can bestow, and the manner had inaugurated this picture in any other manner we would have failed in the observance of this tradition, and would have been untrue to the memory of those whom it seeks to honour for the sacrifice they made."
  The picture itself comprehends in one wide sweep the origins of the conflict and narrows down to Canada's participation, to tell the story of the Canadian corps, its achievements, its joys and sorrows, and in the final scenes searches the heart for the answer to the question if the last conflict was "a war to end war."
  The theatre was crowded with officers from all works of the city, with all of the Ottawa garrison attending in full mess kit.

from the Drummondville Statesman, January 8, 1935
Even Cabinet Members Have Film Trouble
Naming of Picture of Canada's War-Time Activities Proves Brain Twister for Full Gathering of Ministers.
  Ottawa. — While the Government may not be said to have "gone Hollywood," it is nevertheless true that cabinet ministers now appreciate the problems attendant upon evolving a title for a moving picture. A recent meeting of the Privy Council beheld the unusual spectacle of the nation's administrators seriously worried and scratching their pencils as they tried out various titles for the film depicting Canada's part in the war, under Government sanction. Finally an inspiration struck the cabinet, and "Lest We Forget" was born and approved.
  And so "Lest We Forget" is the name of the picture compiled from many thousands of feet of film taken overseas during the war, and trimmed into a connected and coherent story of Canada's war effort. It is designed to bring home to the Canadian public the stupidity and fruitlessness of war. The picture is being presented and will have its premiere early in the New Year under the auspices of the Canadian Legion.
  For more than a year an inter-departmental committee, headed by Major-General A. G. L. McNaughton, C.B., has been working on the film, selecting and identifying the innumerable sequences. The result is a production, of feature length, dividing the war into three periods. "Part one" will embrace the picture of the Grand Duke Michael Ferdinand at Sarajevo to the arrival of the Canadians in France, the battles at Ypres, April 1915, to the Somme, September 1916 and the Vimy Ridge, April, 1917, with side incursions to naval actions at Coronel, the Falkland Islands and the Dogger Bank, to Plug-Street, Sanctuary Wood and Passchendaele, and Canada's "Hundred Days" from Amiens, August 1918 to the end.
  In all sequences the cost of war is vividly illustrated.
  Work of the picture has been proceeding for more than a year. It is with Captain F. O. Badgley, director of the Government Motion Picture Bureau, receiving warm co-operation from authorities in London, Paris, Rome and Washington.