Another New York subway car runs

It has come to my attention that yet another subway car in the extensive historic collection of the New York City Transit Authority, R-10 subway car 3184, was just recently made operational after a couple of decades out of service. Video:

This is one of two R-10 cars still in existence and is technically owned (as far as I can tell) by Railway Preservation Corporation but is kept at Coney Island Shops along with the rest of the preserved fleet of subway cars, some owned by NYCTA and some owned by RPC. The car was built by ACF in 1948; unfortunately I don't know when it was retired (the majority of the fleet seems to have been retired in 1989 so that's a best guess), nor when exactly RPC purchased it.