Vintage PCCs everywhere! The Neponset River Trail/Greenway opened the section overlooking the MBTA Mattapan station in mid-2017, allowing for this morning rush hour view of the vintage 1945-1946 Pullman-Standard cars from overhead on Thursday, August 31, 2017. The Ashmont–Mattapan High Speed Line continues to be served exclusively by these classic trolleys.
https://www.traillink.com/trail/neponset-river-greenway/
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.