Worker posing next to an oil drill, [s.d.]

Photograph of a worker posing next to an oil drill, [s.d.]. To the right of center, a man in a hard hat and overalls can be seen with one of his hands on a large oil drill and its multi-toothed bit. Scaffolding can be seen in the background.一张工人立于石油钻机（oil drill）旁留影的照片，拍摄日期不详。画面中心偏右位置，可见一名头戴安全帽、身着工装工作服的男子，其一只手搭在大型石油钻机及其多齿钻头（multi-toothed bit）上。背景中可见脚手架（scaffolding）。