Four construction workers take a nap, balanced on a steel girder hung 800 feet over Manhattan, during the construction of the RCA Building. Man on...建築業, 建築地盤, 歸檔
Worker pauses for a sandwich, resting on a girder during the construction of a skycraper.摩天大廈, 1930-1939, 職業
low angle view of a metal truss bridge structure against a bright sky, showcasing industrial architecture and engineering details in black and white,buenos aires,argentina - 大樑 個照片及圖片檔金屬, 特寫, 建築風格