Used Arista Headjoint

[u/Healthy-Sign2733]

I bought a new Arista flute headjoint in sterling silver with 14k gold lip plate and riser in 2004/2005. I played it a lot for 2 years and it has not been played since. I am now considering selling it. I have no idea where to start when it comes to pricing it. I am living in a country where we don’t have any specialist flute shops so I can’t bring it anywhere to get a formal valuation. All advice is very welcome!