Montreal Locomotive Works delivered thirty class H1c Hudson type locomotives to the Canadian Pacific Railway in 1937. Unlike the CPR's earlier 4-6-4s, these engines were semi-streamlined with a recessed headlight, side skirting and a largely unbroken boiler contour. Their red, black and silver livery contributed to their distinctive look. Ten members of class H1d followed a year later. In 1939, when King George VI and Queen Elizabeth toured Canada by train, the first two members of the H1d class were repainted in special livery, with a small brass crown attached to the skirting above the cylinders, and assigned to the royal train. After the monarchs returned to Great Britain the locomotives were restored to their original appearance, but the Canadian Pacific was granted permission to apply the crown to the skirting of all the semi-streamlined 4-6-4s, thus designating them the famous "Royal Hudsons." The crown is clearly visible on No. 2822, which surprised me by arriving unannounced with a train from the west while I was exploring the CPR engine terminal at Ottawa in August 1955. For other information about these semi-streamlined Hudsons, see the notes for Nos. 2836 and 2856.