Iron lattice work at night

The latticed pylons on the Greig Street Bride were floodlit tonight, so an opportunity was presented. The suspension bridge was built by the Rose Street Foundry in 1881. I expect you'd like to know how many rivets were used. I've really no idea!

For further info: http://happypontist.blogspot.co.uk/2012/07/scottish-bridges-31-greig-street-bridge.html