![Sydney Harbour Bridge close up detail including rivets. Gray metallic abstract. Blue Sky. Day Stock Photo - Alamy Sydney Harbour Bridge close up detail including rivets. Gray metallic abstract. Blue Sky. Day Stock Photo - Alamy](https://c8.alamy.com/comp/WMH2ED/sydney-harbour-bridge-close-up-detail-including-rivets-gray-metallic-abstract-blue-sky-day-WMH2ED.jpg)
Sydney Harbour Bridge close up detail including rivets. Gray metallic abstract. Blue Sky. Day Stock Photo - Alamy
![Construction of Sydney Harbour Bridge (1931) clip 2 on ASO - Australia's audio and visual heritage online Construction of Sydney Harbour Bridge (1931) clip 2 on ASO - Australia's audio and visual heritage online](http://media1.aso.gov.au/titles/conssydn/conssydn2_.jpg)
Construction of Sydney Harbour Bridge (1931) clip 2 on ASO - Australia's audio and visual heritage online
![File:Riggers riveting the red-hot rivets on the lower outside south chord, Sydney Harbour Bridge, 1930-1931 - Sam Hood (3618264732).jpg - Wikimedia Commons File:Riggers riveting the red-hot rivets on the lower outside south chord, Sydney Harbour Bridge, 1930-1931 - Sam Hood (3618264732).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/2/2d/Riggers_riveting_the_red-hot_rivets_on_the_lower_outside_south_chord%2C_Sydney_Harbour_Bridge%2C_1930-1931_-_Sam_Hood_%283618264732%29.jpg)
File:Riggers riveting the red-hot rivets on the lower outside south chord, Sydney Harbour Bridge, 1930-1931 - Sam Hood (3618264732).jpg - Wikimedia Commons
![Here's a closeup of the Sydney Harbour bridge. Based on this image, how many rivets do you think were … | Architecture, Building construction, Sydney harbour bridge Here's a closeup of the Sydney Harbour bridge. Based on this image, how many rivets do you think were … | Architecture, Building construction, Sydney harbour bridge](https://i.pinimg.com/736x/45/80/b0/4580b0463315b9e94b2272e688b8ea81--sydney-harbour-bridge-you-think.jpg)