I need two exhaust nipples which fit on the back of the 88-note
Steinway stack.  These were the large cast nipples which mounted on
the back of the stack (each on a separate back piece) and which
connected to the nipples of the corresponding size on the expression
box.  They are one and one-eighth inches in diameter and are mounted
at right angles on a square mounting flange which has four screw holes
(one in each corner).  The flange itself is about two inches square.

If anyone has these two parts and is willing to sell them, please let
me know.  Thanks for your help.

Barry Dennis