Electromechanical bulldog mystery

Swapatorium bought this cool-looking old metal bulldog statuette and discovered that it contains some kind of electromechanical component. What is it?!

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This metal bulldog was in a box of objects from an estate sale. It no longer works. I have no idea what its function was when it did operate. It's 3 inches tall and made in Japan.

The bottom has a piece of cardboard and felt. I pulled it up to see what was inside and found the metal coil and string. Was this thing a noisemaker? The dog is solid metal except for the tiny hole on the side which probably once held the pull string. Anyone ever seen one of these? I'm just curious as to its purpose.

If you think you know what it is, post a comment.

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