Hello,  Name here is Mike in East-central Illinois.  I have an Estey
organ I am trying to restore.

It is a Lyon & Healy model; A total of 17 stops, 14 "voices" plus
bass/treble coupler, and tremolo.

My problem is that 5 of the stops are missing; I have no idea what
voice they are.  Is there a source for replacement/reproduction stop
knobs?

Your help is appreciated

Mike