Playing Recorder On Thumb Callus I Have What Seems Like A Tin Whistle,but Made Of Wood.It Has 6 Holes(4 Up,2down)and No Thumb Holes.What Is It?

I have what seems like a tin whistle,but made of wood.It has 6 holes(4 up,2down)and no thumb holes.What is it? - playing recorder on thumb callus

It looks something like a recorder, but a hole and thumb hole missing.It produces a very sharp, like a flageolet whistle.Is one? If yes, then you can as a whistle or a recorder to play? I also have a school in Australia (my cousins, not Aboriginal!)