I was surprised that I received the American Models Passenger Cars this weekend. I thought they would be at least another week, but it was a welcome surprise.
Also found out that the Flyer Northern is too big for the Reading T1, the Polar Express Berk is much closer in look, size etc as stated by Harry Henning. The tender is the correct tender but about 3/4 of an inch too short. I may cancel my new flyer chief Northern for a Flyer chief C & O Berk. The problem being that the Polar Express because of the over size cow catcher has room for a four wheel pilot truck, while the prototypical C & O doesn't - but can run flyer chief at the same time.