Brass Whistle Pendant

Vintage, from the early 1970’s. This is an actual whistle. In good condition; no discoloration evident on the outside. Size is about 1.75” long. See photos for other measurements. The hook is very small; will need a split jump ring if interested in attaching it to a necklace chain or keyring. Comps show similar whistles made of brass. I am not sure of the type of metal this whistle is made from but it is heavy. Original owner. Smoke free home.