Eastern entrance to Pentonville Tunnel and tunnel keeper’s cottage, Regent’s Canal, London
Credit 1905: https://www.sciencephoto.com/media/980309/view/pentonville-tunnel-regent-s-canal-london-c1905 credit 2013: Google Streetview
Eastern entrance to Pentonville Tunnel and tunnel keeper’s cottage, Regent’s Canal, London
Credit 1905: https://www.sciencephoto.com/media/980309/view/pentonville-tunnel-regent-s-canal-london-c1905 credit 2013: Google Streetview
I assume the alternative would be that it’s been filled in, or bomb damaged and filled with rubble.