Text on Flickr:
Picture showing the basement substructure of the BOC building was under construction, it was a substantial excavation and piling foundation operation in that era. The work was carried out by contractor George Wimpey from Britain.
30 years later, the same contractor also built the present HSBC HQ in joint venture with John Lok & Partners.
Wimpey Construction was one of the leading construction businesses in the UK, Canada and the Middle East, engaging in a wide range of building and civil engineering activities. George Wimpey was formed in 1880 and based in Hammersmith, operated largely as a road surfacing contractor. The business was acquired by Godfrey Mitchell in 1919 and he developed it into the UK's pre-eminent construction and housebuilding firm. The firm presently known as Taylor Wimpey after merging with Taylor Woodrow in 2007.
Wimpey Construction - Major non-housing construction projects have included the White City Stadium completed in 1908, the Team Valley Trading Estate completed in 1938, Heathrow Airport completed in 1946, the Clunie Dam in Scotland completed in 1950,the Furnas Dam in Brazil completed in 1963, the Centre Point building in London completed in 1966, the Llyn Brianne Dam completed in 1972, the HSBC Tower in Hong Kong completed in 1985 and the Channel Tunnel completed in 1994. (from Wiki)
Compare this one, taken a couple of months later:
Source: This image came from Flickr, see https://flickr.com/photo.gne?id=6312639886