What is this instrument called?

throast

New member
Hello,

I've been desperately trying to find out what this instrument (if it even is one) is called. I know that it's frequently used in older cartoons, often in connection with crime/undercover activity..? If someone knows, please let me know.

It's the sound heard right at the beginning of this song:
https://www.youtube.com/watch?v=g8gMPO1Rl_I

Thank you
 
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