Due to a change of instruments (switching to the Vibrandoneon, aka “mouth hurdy-gurdy”), I sell my dream whistle:
the keyed Grinthermann Low Re-bemolle (dB).

It’s totally chromatic (technically, rather nickel-chromatic), so it can play any scale including D natural. It actually has more scales than one really needs, whether natural or perverse.
NB: its best C natural is fingered oxxxo ooxx.
It is in perfect condition, though I did tweak the lower keys for a more traditional sound (and looks).
This is a Dutch auction, so the highest offer at midnight (US time) wins this prized instrument.
Please make offers here in this thread. My PM is flooded with spam, and I just can’t keep it tidy, eventhough I changed my board nick several times, including silly names like Moonshausen of Rathausness.
Trade-ins are welcome,
I especially look for this rare Asian rattle known as “Knock-Mam”

Also, our local session bodhrán player just wants the one below, and they are just unavailable in France.
I personnally think it looks like an in-line roller (the tambourine, not France), but I’m not here to discuss his tastes (the bodhranist)–whatever makes him tick. Of course, this would only be a partial trade-in.