http://www.ebay.com/itm/271986306061
These vintage pants were made by the Maritime Pant Mfg. Co Ltd. on July 25, 1952 for the Canadian Navy. They are marked size 15, for a height between 5’11” and 6′ with a waist between 37-38 inches and a breech between 43-44″. They are marked with the broad arrow.

Waist (side to side): 18-1/2″ (doubled = 37″)
Outseam: 45″
Inseam: 31″
Rise: 14″