Am selling my Humphrey NB high D … with the Cnat thumb hole on the back (which can be covered with tape if you don’t like this feature). There is nothing wrong with the whistle .. it is everthing you have read about in the reviews. The problem is that it is too small for my hands.. tended to get lost in them. 
The price is $70 and I will pay postage in US
PM me if interested.
Jim