Here's the photo that Ron was referring to:


This station formerly had twin towers. One of the towers was moved to become Nauset Beach lighthouse (replacing the three sisters).

As for the roofline - two possible explanations, one-it's pictured in an earlier time when that roofline was like that, or two-the roofline is intentionally made incorrect as a means of identifying copies made from the HL model. I'll do some more digging this week while I'm still at the Cape.

John