please see following links in used instruments exchange forum …
marin
https://forums.chiffandfipple.com/t/fs-jon-cochran-cornia-rudall-rose-cocobolo-flute/89627/1
https://forums.chiffandfipple.com/t/fs-overton-goldie-d-sold-chieftain-low-d-whistle/89628/1
https://forums.chiffandfipple.com/t/fs-m-e-polymer-rudall-and-rose-flute-with-four-keys/89626/1