The Wurlitzer 146-A did not properly have bells, although the 146-B
did.  So the question probably should be, How are they mounted and
tubed in the 146-B?  The interior considerations for the 146-A and
146-B should be the same, the principal difference between the models
being the side wings and the bells in the 146-B.

Matthew Caulfield (Irondequoit, N.Y.)