u/Flat-Judgment2055

I received these two instruments from the estate of a dear friend to our music youth program. I am president of a non-profit music association in California. After hanging onto them (sentimentally) for over 5 years, I am finally going to include them in an auction to raise money for our youth program but I have no idea how to value them. btw...I'm also new to Reddit, so I'm not sure if this is even a good place to start or not. Attached are two pictures of each. They appear to be very good quality. If anyone has any advise on how to value these or where to research, I would be most appreciative. Thank you. Theresa