Hi all, I'm new to the site and to model trains in general. I had asked on another thread for help in identifying the train pictured below. I've been told it's an AF from the late 40's early 50's. If anyone here can give me some corroboration and any more details about it that would be great. The tracks measure 7/8" inside to inside the engine is roughly 8" long by 3" tall. Thanks in advance.