This box was probably manufactured by the Eagle Pencil Co. between the late 1930s and early 1950s. Boxes like this can be quite hard to date. I'm still hunting for an old photo or advertisement that might show its original contents. When new, it probably would have been filled with a variety of school supplies such as pencils, crayons, pen holders, rulers or a pencil sharpener. Larger pencil boxes sometimes had a drawer with a compass or protractor or even water color paints. This case is in incredibly good condition for its age. The plane on top looks like a Douglas DC-3... according to Wikipedia, at the peak of its dominance in the airliner market in 1939, around ninety percent of airline flights on the planet were by a DC-3 or some variant.

The journey started in Quebec and went all across the country. (There was also a side trip to Washington, D.C.) They travelled by train, plane, car and ship and covered an estimated 15,000 miles.

I highly recommend the National Film Board of Canada documentary titled Royal Journey. The film documents the five-week visit of Princess Elizabeth and the Duke of Edinburgh to Canada and the United States in the fall of 1951.
​https://www.nfb.ca/film/royal_journey/

Yesterday, I dropped into a local vintage show and was surprised to find a nice box of Eberhard Faber pencils. It is not often that I attend shows like this and even more rare to see pencils there.  In Canada, these were sold in a gold box while in the US, the box was more commonly silver. This box is showing its age on the outside but the inside still looks great. As the Eberhard Faber factory didn't open in Acton Vale until 1951, we can probably date these pencils to the 1950s or early 1960s. As ballpoint pens, such as the Bic Crystal, were becoming popular in the 1950s, this pencil was probably short lived.