[ Ref. http://www.dailymail.co.uk/news/article-3468085/ 

In addition to the roll playing organ, there appears also to be
a reproducing piano (possibly with some parts missing?) in the
abandoned New York mansion of Christofer Noering's recent post.
Close inspection of the double-leg style piano in one of the pictures
reveals what appears to be a pneumatic stack underneath.  Can anyone
tell what kind of instrument this is?

Dave Saul
El Cajon, California