Clark,

I'm going to offer my suspicions based on the photo you provided.  If you count the 'bumps' that show on the ends, there are 10 on the lower panel and 8 on the upper panel, which suggests that the end was a 4-5 dreadnaught end.  The roof looks like it has no raised panels and the 'ribs' look like raised carlines (I hope I got the terminology right), which appears to be similar to Yarmouth's Murphy Flat Panel Roof, Part 4238R.

Todd Sullivan.