Welcome aboard New York City Transit Authority Vintage General Motors Old Look #3100 on Route M42 to 1st Avenue/United Nations via 42nd Street. This bus is part of the NYC Transit Holiday Vintage service using three preserved buses dating back to 1948. 3100 is a 1956 TDH-5106 coach that was originally purchased by Fifth Avenue Coach Company and the first New York City Bus to carry an Air-Conditioning unit.