These were made to get from one place to another. You can see the N then the cut out of the Y and then the letter C. The mintage was 58 million. There was an anniversary token made solid with the impression of a train. That was in the 1970's. When they changed to the metro card they sold these and jewelry stores made a bracelet out of them. Strange but true. As the years went on they did get bigger in size. I wrote this because someone wrote in a blog he posted one. Sorry none were there. No mistake. He clearly states it .