The extension looks too long to be just a metal end plug. My guess is that there is a metal mouthpiece cap included as well. The origin may be Canadian, due to the strong resemblance to a "long necked goose". One will know for sure if when it is played it goes "honk, honk, eh". ;-) (apologies to Helen)
Dang Carl beat me to it. He must think and type faster than I do.