Whats metall used in One-of-a-kind W.W. Kimball Co. Piano

 The specific type of metal used in a one-of-a-kind W.W. Kimball Co. piano would depend on the piano's design and construction. Pianos typically have various metal components, including strings, tuning pins, and various hardware.

Strings: The strings in a piano are usually made of high-carbon steel or sometimes a combination of steel and other materials like copper or bronze, depending on the piano's design and the manufacturer's specifications.

Tuning Pins: Tuning pins are often made of steel or brass.

Frame and Plate: The frame or plate inside the piano, which supports the string tension, is typically made of cast iron. Cast iron is commonly used because it provides the necessary strength and stability.

Hardware: Various hardware components like hinges, pedals, and other small parts may be made of different metals, including brass, steel, or even gold plating for decorative purposes in high-end pianos.

The exact composition of these metal components can vary based on the era in which the piano was manufactured and the specific model or design of the piano. If you have a one-of-a-kind W.W. Kimball Co. piano and are interested in knowing the precise materials used in its construction, it may be helpful to consult historical records, contact experts in piano restoration, or have the piano inspected by a professional technician who can provide more information about its construction and materials.