Having departed from the Arborway terminal and ducked under the New Haven RR mainline, a pair of MBTA PCCs venture out onto South Street in Jamaica Plain on their way downtown via Huntington Avenue. Since this photo was taken in 1969, the highway overpass was replaced by a surface road, the railroad was depressed below ground level, and articulated buses replaced streetcars.
The MBTA is very dear to me. The first trains I ever rode as a toddle to teenager were those of the "T" Here is a collection of MBTA Subway and trolley I have found on RP from the 60's thru today.