Hi Aeroform,
Nice to see some streetscenes still lit by these old fixtures. Especialy in Kt. Zurich.
The fixture in the lower picture is a Belmag AG AEROPLAST. Here with only one fluorescent tube equipped. Nice lantern indeed! I have a couple of these in my collection as we had them in use here in solothurn a while ago.
See in my Albums. There you will find more informations about the Aeroplast