Thanks Fons, BEZ and Tom.
As the photo referred to the re-installation of a road, being closed since 1863 due to railroad factories, I wanted to have a bit of the same look. The Velocipede bicycle was introduced and mass produced around the same time. I personally both know the two gentlemen. To the left is the chairman of an Old Bicycle foundation, he is focussed to the new passage and the possibility not to bump his head in the new tunnel.
The one to right is a 'notorious' tramp, who looked here remarkably fresh.