This item sold on January 11, 2013.
I have scoured lots of different sources to find these. Due to their age they do have some surface scratches and wear, which adds to their vintage charm. These whistles work, and have sort of high airy tone.
This whistle hangs from almost 20 inches of vintage brass chain. It also features a small swallow charm in an antique brass finish.
You can see my other whistles here:
Because these are vintage they are in limited quantities, and go quickly!