there is three in that range and steve tested with players and the crossover which i like the tone of, seemed best but it’s up to what tone you like?
cleaned up my little lady only four holes 35mm x 13mm but got tune out of it.
Hi, very interesting old harmonica, never saw it in real. Well, as i am beginner i don’t know much about tones… don’t know what to answere, i am going to read more about tones, because don’t understand what you mean…
Best wishes
Marina
Congratulations 
Syllables like naka-taka are generally used to create rhythmic patterns (in my opinion “hooka-ticka” is more effective). “Kah” is used to get better attack on a single note.
excelente, mucho éxito!!
matiasc@germania.com.ar