Help for a beautiful Flute to sell

Hi there,

I have this beautiful Irish flute I asked to be made by the french maker Pol Jezequel some 20 years ago and I never got to play it not even once. So it is brand new, it has been stored in perfect condition all these years.

It is a D flute, with blocks for keys but without keys, made in ebony and silver rings.
I would love it to be played now so I am looking to sell it, but I have not idea how much I can ask for it neither where I can post my ad, what do you guys think about it ?

Thanks for you help, I am in France at the moment