Hello,  For the restoration of a 1923 Duo-Art upright (possibly
Aeolian), I am looking for the two pouch cutout blocks that switch
the expression holes and notes 1-4, 84-88 on and off.  I will need
these complete, with the nipples and the metal brackets.  The
condition is irrelevant as I will rebuild them.

Kind regards
Bernt Damm
Sydney