A Vintage metal triangle musical instrument with a wooden-handled beater.

The triangle is a percussion instrument in the idiophone family, consisting of a metal rod bent into a triangular shape. It is typically struck with a metal beater, producing a clear, ringing tone. Triangles have been used in various musical traditions for centuries, evolving from simple metal rings to the more refined shapes seen today.

This particular instrument, with its steel construction and wooden-handled beater, is characteristic of modern orchestral or band triangles. The green cord used for suspension is a common feature, allowing the instrument to vibrate freely. While not an antique in the traditional sense, such instruments are essential tools for musicians and can be considered collectible items within the realm of musical instruments.