Urbis z3s are quite a rare lantern in the uk, I only know about the ones on the M25. They have a aluminium front canopy and a black back canopy.

M25

These urbis ZX3s are on the m25. They are on 14m columns and they run on 400w SON lamps. 

Here is a bit of the stretch of the m25 with the urbis Z3s, some of them have no bowls, and a bit further down, there are quite a few dayburners.

Here is the bit with a few more dayburners, the one closest to the photo is Dayburning and it has no bowl, and the one further away from the photo is also Dayburning.