… other heading of this Chapter; decoy calls of all kinds; whistles, call horns and other mouth-blown sound signalling …
Explanatory notes
… other heading of this Chapter; decoy calls of all kinds; whistles, call horns and other mouth-blown sound signalling … (clockwork) motor which is wound with a key or directly by a handle. In some types, the cylinder may be … and call horns , made of horn , bone, metal, etc. (ii) Whistles (mouth‑blown) of metal, wood , etc., for giving …