Trams for pax should now exist for everey year, I hope
. Maybe later comes more...
For mail and fright I´m not sure, if exist trams in reality for every period. Pakname is "....german", for trams in game should exist real models in Germany, I think.
Btw especially for the older (not only) trams it´s hard to find data. Some of the older trams are created with only one template-image. Often I found interesting information for trams, but no images.
Catenary I have not created - in other zoom levels the look of cable and pillars is a little differnt, so far as I know. But the trams are a bigger than in pak.128 and catenary could be the same as in pak128.