Is this a vintage train the MTA is running or is it just getting here for 1964 Mets Opening day?

Photo from the MTA

The MTA will be operating a vintage subway train on the 7 line Thursday as part of its annual opening day tradition in honor of the Mets.
The train, known as the “Train of Many Colors,” will run as an express from 34 St-Hudson Yards to Flushing-Main St, departing at 11:30 a.m. March 29.  It will make it to Citi Field well before first pitch.

Read more at The Flushing Post