The T1 was one of the first tramcars based on the American Presidents' Conference Committee concept, produced by Czechoslovakian company ČKD Tatra.

Most of them were used in Czechoslovakia, but 22 were shipped abroad: 2 to Warsaw and the remaining 20 to Rostov-on-Don.

The first prototype of T1, T1 TW 5001, which today is considered the forefather of all Tatra trams, premiered in the streets of Prague on 22 January 1951.

The cars remained in use into the 1960s, when they were converted into T3-type vehicles.

New Tatra T1 units were delivered to the following cities:[1] Media related to Tatra T1 at Wikimedia Commons