The Tramvia Blau is a Barcelona tram route which runs between the old "La Rotonda" restaurant and the base of the Tibidabo amusement park funicular railway.
The model depicts a series 5-10 which was built in 1904. It's still in service today. You can see the beast in action here:
https://www.youtube.com/watch?time_c...&v=SHJYknIj1ds
The kit was published in 1984 by La Ciutat de Paper and the scale is 1:43.5