workers union - international union of operating engineers - three

workers union - international union of operating engineers - three, labor union, operating engineers, three workers union - international union of operating engineers - three, labor union, operating engineers, three

workers union - international union of operating engineers - three

Labor Union - International Union of Operating Engineers (3)

labor union
operating engineers
three
November 30, 2008

Unclassified photos taken in San Francisco Bay Area.­