I knew Lima used to have electric trams in the past, but it didn’t occur to me that old maps might have survived of this tram network. It turns out that they did. Allen Morrison has a truly stunning website about trams in Peru. Among other things the website contains a map of the tram network in Lima.
I was actually searching on the web for another historical map: the 1983 edition of Lima2000‘s Lima Street Map, which includes a Mapa de Rutas. I know this, because the other day I visited the offices of Lima2000 and they showed me their archive copy. Should anyone have more information about this map (the only example I know of, that maps all the routes in Lima), please leave me a comment.