England, Kent, Denge, 20ft and 30ft Experimental Sound Mirrors built in 1928 and 1930, precursor to RADAR, at Greatstone.

England, Kent, Denge, 20ft and 30ft Experimental Sound Mirrors built in 1928 and 1930, precursor to RADAR, at Greatstone.

England, Kent, Denge, 20ft and 30ft Experimental Sound Mirrors built in 1928 and 1930, precursor to RADAR, at Greatstone.

England, Kent, Denge, 20ft Experimental Sound Mirror built in 1928, precursor to RADAR, at Greatstone.

England, Kent, Denge, 200ft Experimental Sound Mirror built in 1930, precursor to RADAR, at Greatstone.

England, Kent, Denge, 20ft Experimental Sound Mirror built in 1928, precursor to RADAR, at Greatstone.

England, Kent, Denge, 30ft Experimental Sound Mirror built in 1930, precursor to RADAR, at Greatstone.

USA, Florida, Key West, Sloppy Joes Bar on Duval Street where Ernest Hemingway was a regular customer when he lived at Key West in the 1930s.

Shanghai Museum of Chinese culture built in the 1930s and converted to a museum in 1952. Exterior and city buildings illuminated at night with fountain in foreground.

The Bund aka Zhong Shan Road. 1930s style waterfront architecture including the Peace Hotel and the Bank of China with statue of Mao and fountain in the foreground

The Bund aka Zhong Shan Road. View along the 1930s style waterfront architecture with fountain in the foreground

The Bund aka Zhong Shan Road. 1930s style waterfront architecture including the Peace Hotel and the Bank of China with statue of Mao in the foreground