April 1987
The fearsome Sitting Comfortably, a 1987 chair by Michael Sanders, is formed from razor wire, and is said to be a comment on the Greenham Common anti-nuclear protests.
It was featured in the Subversive Design show at The Brighton Museum & Art Gallery 2013
https://www.designweek.co.uk/issues/august-2013/subversive-design/
N.B. Not all locations, in particular military bases, have Streetview data available