Jason Balcom asks about leather belting.  I notice that Player
Piano Company of Wichita (phone (316) 263 3241) sell belting in sizes
3/16 in., 1/4 in., 5/16 in., 3/8 in.  I'm not sure whether this is
suitable for the Aeolian 1500, but it's probably worth a try.

John Farmer, UK
http://www.musicanic.com/