Kolkata Tramways Special Cover --- This Special Cover was issued by IndiaPost on 17th November 2019 during a Philatelic exhibtion on 150 years of Mahatma Gandhi on the occasion of 117 glorious years of Electric Tram of Kolkata since 1902. Kolkata Tram is the only operating tram network in India and is the oldest continuously running electric tram system of Asia. The special cover includes a picture of old horse-drawn tram, a single-truck water tanker tram of British era (still in service) & a Jessop built double-coach non-ac tram car running at route # 29. The Cover costs ₹ 25/- each.