Military supply depot at wharf with cranes and workers unloading and loading boxes in preparation for WWII D-Day

WS wharf and supply depot, probably in England; cranes outlined against sky, dark smoke rising, airships in sky / view of wharf from moving boat / boxes secured by rope being unloaded by crane / MS boxes stacked in rope transport container / stack of boxes moving by crane / CU worker signaling / cranes / crane transporting boxes / big container in fg, maybe ship in bg / pulleys on crane, can see face of operator / MS container being loaded onto truck, back of worker wearing jacket reading US Army / CU soldier making mark on paper / cranes / VS crane moving boxes / crane moving boxes over railroad tracks / woman driving small open vehicle behind transport vehicles / CU woman / boxes hanging from cranes, docks in bg, front of brick building in fg / crane operator box moving / boxes being loaded into big crates, workers standing in crates / Note: exact day not known