How much do you think is this French viola worth?

I have a French viola made by Emile Leipp from the year 1949 and would like to sell it, to maybe buy a decent violin from the proceeds.

What do you think such instrument would sell for and what is the best place to advertise that would likely attract some buyers? (tried and tired of Ebay)

Amati and another site have a short article about Leipp with not much information.

http://www.amati.com/maker/leipp-e

https://ccrma.stanford.edu/marl/CASL/Files/leipp.html