I returned from the DuBois (PA) area and stopped by the Falls Creek tower (FC). The old Pennsy diamond across the mainline has been removed. The tower has been trashed. I am aware of only four towers remaining on the old BR&P/B&O mainline from Butler (PA) to Buffalo (NY). Falls Creek (FC), C&M Jct. (near DuBois), Brockway (WI) and Ashford Jct. (NY). A fifth tower existed at Riverside Jct. crossing the Pennsylvania Railroad near the New York state line, however, the tower was torn down in the 1970's. Are there any photos available of these towers during operation? Does any information exist on the Riverside Jct. operation?
You might join the BR&P Yahoo group, there has been discussion of the towers there. The B&O Historical Society's 1998 calendar had a photo of FC taken in 1963, with B&O caboose C2658 (former BR&P) going by.
I had the board from C&M but it was in such bad shape that during a move I tossed it, something I have since regretted. I did manage to copy most of the route instructions and track diagram, and have one lever from that tower.
You no doubt are aware that AD is privately owned and nicely restored.