While it wasn't a "new" release, Walthers was displaying their new Pennsylvania Interlocking Tower at the NTS this year. If you have read my ramblings here for any length of time, you KNOW that one of my weaknesses is an interlocking tower of most any size and/or shape. This one certainly is a welcome addition to my collection and I'll have to be looking for one soon.
The tower has a smallish footprint of about 4x5 inches and is molded in four colors plus clear plastic. Based on past Walthers models, I'd expect this one to be easy to assemble and make a fine model when completed.
Don't shy away from this one just because you don't happen to be a Pennsy modeler. As railroads crossed each other when our nations rail system grew, the companies would negotiate control, staffing, maintenance & ownership of the crossing & tower if one needed to be there. While not always the case, "typically," when a crossing was needed, the company that wished to cross the first line would be responsible for the crossing and related expenses. Even then, there were some unique situations that had unusual arrangements.
The tower at Narlo/Maple Grove resembles the new Walther's model so it would be right at home on my NKP-themed railroad. The tower there was also interesting in that the Pennsy built it and manned it during the day shift but NKP was responsible for second & third shift staffing. Just another one of those quirky things along the right of way...