Sofia T8M-500 507 ("rear end") on blvd. Hristo Botev, serving line 1. April 2012.
Note that this type of tram is a dual-direction narrow gauge tram (exits on both sides, two equal ends and two pantographs). The photo shows the rear end of a passing tram; the second pantograph is not in use. Photo by M. Koblischka (koblischka@t-online.de)