Value of my Salvi Daphne 40?

I recently came back into possession of the Salvi Daphne 40 (Ebony matt finish) that I played as a teen/young adult. It had been in my grandmother’s smoke-free home for the last  18 years. I am very curious in trying to determine its current value. It is currently missing 9 of its 40 strings which I am going to start replacing. I can post pictures soon.  Any expertise is much appreciated!