sought-after ! Vintage Clean Reliable Brothers 7 hole ceramic flute in wood box G

Greetings...time to pare down my instrument collection. First up is this gorgeous, unsigned (but research identified the aforementioned Reliable Brothers...) glazed ceramic 7 open hole flute encased in a fine wooden box with leather snap closure. (my woodworking partner identified it as possibly Philipene mahogany) The flute is in flawless condition, no chips, cracks or crazing. The box shows a few minor wear...I only rated it 'good' because of its age.. since the first set of pics, I have replaced the missing felt I side the wood case.see last pic,please. Idk why mercari makes it so dark.
Box measures 17.5"X 1.75" and the flute is 15.5" X 1". The tambre of this flute is rich and velvety, imo. I honestly haven't played it much though, as I am not particularly a flutist. There is a book available online for it. I promise it will be swaddled with care for its journey from me to you.

Thanks for looking! Cheers!