Black and white photograph of Douglas DC-4 aircraft parked on airport tarmac with ground crew and equipment

This black and white photograph shows a Douglas DC-4 four-engine propeller aircraft parked on an airport tarmac, likely from the 1940s or 1950s. Ground crew members can be seen working around the aircraft along with support vehicles, representing the era of piston-engine commercial aviation that preceded Sir Freddie Laker's later jet operations.