My new SDA alto has an improvised octave key thumb rest. It is ugly but functional, however I would like either to try to find an original replacement -which seems very difficult- or to have a copy made from the original.
My first problem is that I do not wish to remove the one that is installed until I know what to expect. Have any SDA owners seen if the original part is glued or screwed?. I would be grateful if someone could post photos with the shape and internal fixing area, as well as indicating the approximate measures.
Regarding the neck, my SDA seems to have the original one by judging the very particular original lacquer tone and the shape of the octave key logo area. However, the logo is not longer visible at all and I wonder if it was originally engraved or printed (I have never seen any other SDA in my life) . I have also noticed that some SDA altos, I think the later ones, have a different octave key, with thin split shape and no room for any logo.
My SDA is one of the "rare" ones with nickel keys and is being serviced by a local tech. However, in my current location is very difficult for us to find other SDAs to compare, so your help is greatly appreciated.