National Geographic : 1911 Feb
LABORERS WAITING FOR THE MEAL HOUR AT ONE OF THE MESSES FOR THE "SILVER ROLL" To avoid the color question, all employees are divided into two classes, those paid in gold, who form the"gold roll," and those paid inC silver, the "silver roll." Americans and Europeans belong to the former, and the West Indians and Panamans tothelatter. These men can get a meal ticket for 3o cents after they have done one-half day's work. The meal costs the Commission 27.29cents.