The Master Key Chromatic Pitch Instrument A-440 13 Keys, Vintage Wm Kratt Co USA

The Master Key Chromatic Pitch Instrument A-440 is a vintage tuning pipe manufactured by Wm Kratt Co in the United States. This compact and lightweight instrument, made of black metal, is suitable for tuning various musical instruments such as the piano, cello, violin, and banjo. With 13 keys and a sleek design, this A-440 model is perfect for musicians looking to achieve precise and accurate pitch settings for their performances. Its unique features and quality construction make it an essential tool for any musician in need of a reliable pitch tuner.