Throughout the first century of Canadian Royal Aviation Service (CRA) (1924-2024), its members crisscrossed the sky to rescue, defend and represent Canadians, in the country as abroad. On the occasion of the Centenary of the Arc, the commemorative traffic part of $ 2 - 100ᵉ anniversary of the Royal Canadian aviation presents a reason paying tribute to a century of missions, technology and great moments. Each special roll of colored parts contains 25 $ 2 pieces decorated with an illustration enhanced with a selective coloring representing the Washer of the Arc and the Hercules CC-30H in the center, all surrounded by engravings of aircraft from the past and of the present of the arc.